The remote SUSE Linux SLES11 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2022:14910-1 advisory.

  - zsh before 5.0.7 allows evaluation of the initial values of integer variables imported from the     environment (instead of treating them as literal numbers). That could allow local privilege escalation,     under some specific and atypical conditions where zsh is being invoked in privilege-elevation contexts     when the environment has not been properly sanitized, such as when zsh is invoked by sudo on systems where     env_reset has been disabled. (CVE-2014-10070)

  - In exec.c in zsh before 5.0.7, there is a buffer overflow for very long fds in the >& fd syntax.
    (CVE-2014-10071)

  - In utils.c in zsh before 5.0.6, there is a buffer overflow when scanning very long directory paths for     symbolic links. (CVE-2014-10072)

  - In zsh before 5.3, an off-by-one error resulted in undersized buffers that were intended to support     PATH_MAX characters. (CVE-2016-10714)

  - In builtin.c in zsh before 5.4, when sh compatibility mode is used, there is a NULL pointer dereference     during processing of the cd command with no argument if HOME is not set. (CVE-2017-18205)

  - In utils.c in zsh before 5.4, symlink expansion had a buffer overflow. (CVE-2017-18206)

  - An issue was discovered in zsh before 5.6. The beginning of a #! script file was mishandled, potentially     leading to an execve call to a program named on the second line. (CVE-2018-0502)

  - zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function.
    A local attacker could exploit this to cause a denial of service. (CVE-2018-1071)

  - Zsh before version 5.4.2-test-1 is vulnerable to a buffer overflow in the shell autocomplete     functionality. A local unprivileged user can create a specially crafted directory path which leads to code     execution in the context of the user who tries to use autocomplete to traverse the before mentioned path.
    If the user affected is privileged, this leads to privilege escalation. (CVE-2018-1083)

  - An issue was discovered in zsh before 5.6. Shebang lines exceeding 64 characters were truncated,     potentially leading to an execve call to a program name that is a substring of the intended one.
    (CVE-2018-13259)

  - In params.c in zsh through 5.4.2, there is a crash during a copy of an empty hash table, as demonstrated     by typeset -p. (CVE-2018-7549)

  - In Zsh before 5.8, attackers able to execute commands can regain privileges dropped by the --no-PRIVILEGED     option. Zsh fails to overwrite the saved uid, so the original privileges can be restored by executing     MODULE_PATH=/dir/with/module zmodload with a module that calls setuid(). (CVE-2019-20044)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update for zsh fixes the following issues :

  - CVE-2014-10070: environment variable injection could     lead to local privilege escalation (bnc#1082885)

  - CVE-2014-10071: buffer overflow in exec.c could lead to     denial of service. (bnc#1082977)

  - CVE-2014-10072: buffer overflow In utils.c when scanning     very long directory paths for symbolic links.
    (bnc#1082975)

  - CVE-2016-10714: In zsh before 5.3, an off-by-one error     resulted in undersized buffers that were intended to     support PATH_MAX characters. (bnc#1083250)

  - CVE-2017-18205: In builtin.c when sh compatibility mode     is used, a NULL pointer dereference could lead to denial     of service (bnc#1082998)

  - CVE-2018-1071: exec.c:hashcmd() function vulnerability     could lead to denial of service. (bnc#1084656)

  - CVE-2018-1083: Autocomplete vulnerability could lead to     privilege escalation. (bnc#1087026)

  - CVE-2018-7549: In params.c in zsh through 5.4.2, there     is a crash during a copy of an empty hash table, as     demonstrated by typeset -p. (bnc#1082991)

  - CVE-2017-18206: buffer overrun in xsymlinks could lead     to denial of service (bnc#1083002)

  - Autocomplete and REPORTTIME broken (bsc#896914)

This update was imported from the SUSE:SLE-12:Update update project.

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-1932 advisory.

    - fix defects detected by Coverity related to CVE-2017-18206 and CVE-2018-1083
    - fix stack-based buffer overflow in utils.c:checkmailpath() (CVE-2018-1100)
    - fix stack-based buffer overflow in gen_matches_files() (CVE-2018-1083)
    - fix buffer overrun in xsymlinks (CVE-2017-18206)
    - fix buffer overflow when scanning very long path for symlinks (CVE-2014-10072)

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:3073 advisory.

    The zsh shell is a command interpreter usable as an interactive login shell and as a shell script command     processor. Zsh resembles the ksh shell (the Korn shell), but includes many enhancements. Zsh supports     command-line editing, built-in spelling correction, programmable command completion, shell functions (with     autoloading), a history mechanism, and more.

    Security Fix(es):

    * zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c (CVE-2018-1083)

    * zsh: buffer overflow for very long fds in >& fd syntax (CVE-2014-10071)

    * zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072)

    * zsh: NULL dereference in cd in sh compatibility mode under given circumstances (CVE-2017-18205)

    * zsh: buffer overrun in symlinks (CVE-2017-18206)

    * zsh: Stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071)

    * zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution     (CVE-2018-1100)

    * zsh: crash on copying empty hash table (CVE-2018-7549)

    For more details about the security issue(s), including the impact, a CVSS score, and other related     information, refer to the CVE page(s) listed in the References section.

    The CVE-2018-1083, CVE-2018-1071, and CVE-2018-1100 issues were discovered by Richard Maciel Costa (Red     Hat).

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Security Fix(es) :

  - zsh: Stack-based buffer overflow in gen_matches_files()     at compctl.c (CVE-2018-1083)

  - zsh: buffer overflow for very long fds in >&amp; fd     syntax (CVE-2014-10071)

  - zsh: buffer overflow when scanning very long directory     paths for symbolic links (CVE-2014-10072)

  - zsh: NULL dereference in cd in sh compatibility mode     under given circumstances (CVE-2017-18205)

  - zsh: buffer overrun in symlinks (CVE-2017-18206)

  - zsh: Stack-based buffer overflow in exec.c:hashcmd()     (CVE-2018-1071)

  - zsh: buffer overflow in utils.c:checkmailpath() can lead     to local arbitrary code execution (CVE-2018-1100)

  - zsh: crash on copying empty hash table (CVE-2018-7549)

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has zsh packages installed that are affected by multiple vulnerabilities:

  - A buffer overflow flaw was found in the zsh shell file     descriptor redirection functionality. An attacker could     use this flaw to cause a denial of service by crashing     the user shell. (CVE-2014-10071)

  - A NULL pointer dereference flaw was found in the code     responsible for the cd builtin command of the zsh     package. An attacker could use this flaw to cause a     denial of service by crashing the user shell.
    (CVE-2017-18205)

  - A buffer overflow flaw was found in the zsh shell check     path functionality. A local, unprivileged user can     create a specially crafted message file, which, if used     to set a custom you have new mail message, leads to     code execution in the context of the user who receives     the message. If the user affected is privileged, this     leads to privilege escalation. (CVE-2018-1100)

  - A buffer overflow flaw was found in the zsh shell auto-     complete functionality. A local, unprivileged user can     create a specially crafted directory path which leads to     code execution in the context of the user who tries to     use auto-complete to traverse the before mentioned path.
    If the user affected is privileged, this leads to     privilege escalation. (CVE-2018-1083)

  - zsh through version 5.4.2 is vulnerable to a stack-based     buffer overflow in the exec.c:hashcmd() function. A     local attacker could exploit this to cause a denial of     service. (CVE-2018-1071)

  - A NULL pointer dereference flaw was found in the code     responsible for saving hashtables of the zsh package. An     attacker could use this flaw to cause a denial of     service by crashing the user shell. (CVE-2018-7549)

  - A buffer overflow flaw was found in the zsh shell     symbolic link resolver. A local, unprivileged user can     create a specially crafted directory path which leads to     a buffer overflow in the context of the user trying to     do a symbolic link resolution in the aforementioned     path. If the user affected is privileged, this leads to     privilege escalation. (CVE-2017-18206)

  - A buffer overflow flaw was found in the zsh shell     symbolic link resolver. A local, unprivileged user can     create a specially crafted directory path which leads to     a buffer overflow in the context of the user trying to     do symbolic link resolution in the aforementioned path.
    An attacker could exploit this vulnerability to cause a     denial of service condition on the target.
    (CVE-2014-10072)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version MAIN 4.05, has zsh packages installed that are affected by multiple vulnerabilities:

  - A buffer overflow flaw was found in the zsh shell check     path functionality. A local, unprivileged user can     create a specially crafted message file, which, if used     to set a custom you have new mail message, leads to     code execution in the context of the user who receives     the message. If the user affected is privileged, this     leads to privilege escalation. (CVE-2018-1100)

  - A buffer overflow flaw was found in the zsh shell auto-     complete functionality. A local, unprivileged user can     create a specially crafted directory path which leads to     code execution in the context of the user who tries to     use auto-complete to traverse the before mentioned path.
    If the user affected is privileged, this leads to     privilege escalation. (CVE-2018-1083)

  - A buffer overflow flaw was found in the zsh shell     symbolic link resolver. A local, unprivileged user can     create a specially crafted directory path which leads to     a buffer overflow in the context of the user trying to     do a symbolic link resolution in the aforementioned     path. If the user affected is privileged, this leads to     privilege escalation. (CVE-2017-18206)

  - A buffer overflow flaw was found in the zsh shell     symbolic link resolver. A local, unprivileged user can     create a specially crafted directory path which leads to     a buffer overflow in the context of the user trying to     do symbolic link resolution in the aforementioned path.
    An attacker could exploit this vulnerability to cause a     denial of service condition on the target.
    (CVE-2014-10072)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote MiracleLinux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2018-3420:01 advisory.

    * zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c (CVE-2018-1083)
      * zsh: buffer overflow for very long fds in >

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update for zsh is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The zsh shell is a command interpreter usable as an interactive login shell and as a shell script command processor. Zsh resembles the ksh shell (the Korn shell), but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and more.

Security Fix(es) :

* zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c (CVE-2018-1083)

* zsh: buffer overflow for very long fds in >& fd syntax (CVE-2014-10071)

* zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072)

* zsh: NULL dereference in cd in sh compatibility mode under given circumstances (CVE-2017-18205)

* zsh: buffer overrun in symlinks (CVE-2017-18206)

* zsh: Stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071)

* zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution (CVE-2018-1100)

* zsh: crash on copying empty hash table (CVE-2018-7549)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

The CVE-2018-1083, CVE-2018-1071, and CVE-2018-1100 issues were discovered by Richard Maciel Costa (Red Hat).

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section.

A buffer overflow flaw was found in the zsh shell symbolic link resolver. A local, unprivileged user can create a specially crafted directory path which leads to a buffer overflow in the context of the user trying to do a symbolic link resolution in the aforementioned path. If the user affected is privileged, this leads to privilege escalation.(CVE-2017-18206)

A buffer overflow flaw was found in the zsh shell auto-complete functionality. A local, unprivileged user can create a specially crafted directory path which leads to code execution in the context of the user who tries to use auto-complete to traverse the before mentioned path. If the user affected is privileged, this leads to privilege escalation.(CVE-2018-1083)

A NULL pointer dereference flaw was found in the code responsible for saving hashtables of the zsh package. An attacker could use this flaw to cause a denial of service by crashing the user shell.(CVE-2018-7549)

A NULL pointer dereference flaw was found in the code responsible for the cd builtin command of the zsh package. An attacker could use this flaw to cause a denial of service by crashing the user shell.(CVE-2017-18205)

A buffer overflow flaw was found in the zsh shell symbolic link resolver. A local, unprivileged user can create a specially crafted directory path which leads to a buffer overflow in the context of the user trying to do symbolic link resolution in the aforementioned path.
An attacker could exploit this vulnerability to cause a denial of service condition on the target.(CVE-2014-10072)

A buffer overflow flaw was found in the zsh shell check path functionality. A local, unprivileged user can create a specially crafted message file, which, if used to set a custom 'you have new mail' message, leads to code execution in the context of the user who receives the message. If the user affected is privileged, this leads to privilege escalation.(CVE-2018-1100)

zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function. A local attacker could exploit this to cause a denial of service.(CVE-2018-1071)

A buffer overflow flaw was found in the zsh shell file descriptor redirection functionality. An attacker could use this flaw to cause a denial of service by crashing the user shell.(CVE-2014-10071)

According to the versions of the zsh package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - zsh: buffer overflow for very long fds in i1/4zi1/4+ fd     syntax (CVE-2014-10071)

  - zsh: buffer overflow when scanning very long directory     paths for symbolic links (CVE-2014-10072)

  - zsh: NULL dereference in cd in sh compatibility mode     under given circumstances (CVE-2017-18205)

  - zsh: buffer overrun in symlinks (CVE-2017-18206)

  - zsh: Stack-based buffer overflow in exec.c:hashcmd()     (CVE-2018-1071)

  - zsh: buffer overflow in utils.c:checkmailpath() can     lead to local arbitrary code execution (CVE-2018-1100)

  - zsh: crash on copying empty hash table (CVE-2018-7549)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

This update for zsh fixes the following issues :

  - CVE-2014-10070: environment variable injection could     lead to local privilege escalation (bnc#1082885)

  - CVE-2014-10071: buffer overflow in exec.c could lead to     denial of service. (bnc#1082977)

  - CVE-2014-10072: buffer overflow In utils.c when scanning     very long directory paths for symbolic links.
    (bnc#1082975)

  - CVE-2016-10714: In zsh before 5.3, an off-by-one error     resulted in undersized buffers that were intended to     support PATH_MAX characters. (bnc#1083250)

  - CVE-2017-18205: In builtin.c when sh compatibility mode     is used, a NULL pointer dereference could lead to denial     of service (bnc#1082998)

  - CVE-2018-1071: exec.c:hashcmd() function vulnerability     could lead to denial of service. (bnc#1084656)

  - CVE-2018-1083: Autocomplete vulnerability could lead to     privilege escalation. (bnc#1087026)

  - CVE-2018-7549: In params.c in zsh through 5.4.2, there     is a crash during a copy of an empty hash table, as     demonstrated by typeset -p. (bnc#1082991)

  - CVE-2017-18206: buffer overrun in xsymlinks could lead     to denial of service (bnc#1083002)

  - Autocomplete and REPORTTIME broken (bsc#896914)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:1932 advisory.

    The zsh shell is a command interpreter usable as an interactive login shell and as a shell script command     processor. Zsh resembles the ksh shell (the Korn shell), but includes many enhancements. Zsh supports     command-line editing, built-in spelling correction, programmable command completion, shell functions (with     autoloading), a history mechanism, and more.

    Security Fix(es):

    * zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c (CVE-2018-1083)

    * zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072)

    * zsh: buffer overrun in symlinks (CVE-2017-18206)

    * zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution     (CVE-2018-1100)

    For more details about the security issue(s), including the impact, a CVSS score, and other related     information, refer to the CVE page(s) listed in the References section.

    The CVE-2018-1083 and CVE-2018-1100 issues were discovered by Richard Maciel Costa (Red Hat).

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 6.10 Release Notes     and Red Hat Enterprise Linux 6.10 Technical Notes linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In utils.c in zsh before 5.0.6, there is a buffer overflow when scanning very long directory paths for     symbolic links. (CVE-2014-10072)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote MiracleLinux 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2018-3183:01 advisory.

    * zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c (CVE-2018-1083)
    * zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072)
    * zsh: buffer overrun in symlinks (CVE-2017-18206)
    * zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution     (CVE-2018-1100)

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Security Fix(es) :

  - zsh: Stack-based buffer overflow in gen_matches_files()     at compctl.c (CVE-2018-1083)

  - zsh: buffer overflow when scanning very long directory     paths for symbolic links (CVE-2014-10072)

  - zsh: buffer overrun in symlinks (CVE-2017-18206)

  - zsh: buffer overflow in utils.c:checkmailpath() can lead     to local arbitrary code execution (CVE-2018-1100)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
159025	SUSE SLES11 Security Update : zsh (SUSE-SU-2022:14910-1)	Nessus	SuSE Local Security Checks	2022/3/17	2023/7/14	critical
109384	openSUSE Security Update : zsh (openSUSE-2018-399)	Nessus	SuSE Local Security Checks	2018/4/27	2024/10/22	critical
110707	Oracle Linux 6 : zsh (ELSA-2018-1932)	Nessus	Oracle Linux Local Security Checks	2018/6/27	2024/10/23	critical
118524	RHEL 7 : zsh (RHSA-2018:3073)	Nessus	Red Hat Local Security Checks	2018/10/31	2025/4/15	critical
119204	Scientific Linux Security Update : zsh on SL7.x x86_64 (20181030)	Nessus	Scientific Linux Local Security Checks	2018/11/27	2024/7/18	critical
127273	NewStart CGSL CORE 5.04 / MAIN 5.04 : zsh Multiple Vulnerabilities (NS-SA-2019-0070)	Nessus	NewStart CGSL Local Security Checks	2019/8/12	2021/1/14	critical
127411	NewStart CGSL MAIN 4.05 : zsh Multiple Vulnerabilities (NS-SA-2019-0144)	Nessus	NewStart CGSL Local Security Checks	2019/8/12	2021/1/14	critical
289489	MiracleLinux 7 : zsh-5.0.2-31.el7 (AXSA:2018-3420:01)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/16	critical
118989	CentOS 7 : zsh (CESA-2018:3073)	Nessus	CentOS Local Security Checks	2018/11/16	2024/7/22	critical
119466	Amazon Linux AMI : zsh (ALAS-2018-1107)	Nessus	Amazon Linux Local Security Checks	2018/12/7	2024/7/17	critical
119524	EulerOS 2.0 SP3 : zsh (EulerOS-SA-2018-1396)	Nessus	Huawei Local Security Checks	2018/12/10	2024/7/16	critical
109355	SUSE SLED12 / SLES12 Security Update : zsh (SUSE-SU-2018:1072-1)	Nessus	SuSE Local Security Checks	2018/4/26	2024/10/24	critical
110607	RHEL 6 : zsh (RHSA-2018:1932)	Nessus	Red Hat Local Security Checks	2018/6/19	2024/11/5	critical
218291	Linux Distros Unpatched Vulnerability : CVE-2014-10072	Nessus	Misc.	2025/3/4	2026/1/28	critical
289325	MiracleLinux 4 : zsh-4.3.11-8.AXS4 (AXSA:2018-3183:01)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/16	critical
110893	Scientific Linux Security Update : zsh on SL6.x i386/x86_64 (20180619)	Nessus	Scientific Linux Local Security Checks	2018/7/3	2024/9/6	critical

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