libtasn1 has been updated to fix three security issues :

  - asn1_get_bit_der() could have returned negative bit     length. (CVE-2014-3468)

  - Multiple boundary check issues could have allowed DoS.
    (CVE-2014-3467)

  - Possible DoS by NULL pointer dereference in     asn1_read_value_type (CVE-2014-3469)

The remote Solaris system is missing necessary patches to address security updates :

  - The asn1_get_bit_der function in GNU Libtasn1 before 3.6     does not properly report an error when a negative bit     length is identified, which allows context-dependent     attackers to cause out-of-bounds access via crafted     ASN.1 data. (CVE-2014-3468)

  - The (1) asn1_read_value_type and (2) asn1_read_value     functions in GNU Libtasn1 before 3.6 allows     context-dependent attackers to cause a denial of service     (NULL pointer dereference and crash) via a NULL value in     an ivalue argument. (CVE-2014-3469)

The remote MiracleLinux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2014-385:01 advisory.

    This is the ASN.1 library used in GNUTLS. More up to date information can be found at     http://www.gnu.org/software/gnutls and http://www.gnutls.org     Security issues fixed with this release:
     CVE-2014-3467      Multiple unspecified vulnerabilities in the DER decoder in GNU Libtasn1 before 3.6, as used in GnutTLS,     allow remote attackers to cause a denial of service (out-of-bounds read) via a crafted ASN.1 data.
     CVE-2014-3468      The asn1_get_bit_der function in GNU Libtasn1 before 3.6 does not properly report an error when a     negative bit length is identified, which allows context-dependent attackers to cause out-of-bounds access     via crafted ASN.1 data.
     CVE-2014-3469      The (1) asn1_read_value_type and (2) asn1_read_value functions in GNU Libtasn1 before 3.6 allows context-     dependent attackers to cause a denial of service (NULL pointer dereference and crash) via a NULL value in     an ivalue argument.

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.

The remote MiracleLinux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2014-378:02 advisory.

    GnuTLS is a project that aims to develop a library which provides a secure layer, over a reliable     transport layer. Currently the GnuTLS library implements the proposed standards by the IETF's TLS working     group.
    Security issues fixed with this release:
     CVE-2014-3466     Buffer overflow in the read_server_hello function in lib/gnutls_handshake.c in GnuTLS before 3.1.25, 3.2.x     before 3.2.15, and 3.3.x before 3.3.4 allows remote servers to cause a denial of service (memory     corruption) or possibly execute arbitrary code via a long session id in a ServerHello message.
     CVE-2014-3467      CVE-2014-3468      CVE-2014-3469     No information available at the time of writing, please refer to the CVE links below.

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.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2014:0596 advisory.

    The libtasn1 library provides Abstract Syntax Notation One (ASN.1) parsing     and structures management, and Distinguished Encoding Rules (DER) encoding     and decoding functions.

    It was discovered that the asn1_get_bit_der() function of the libtasn1     library incorrectly reported the length of ASN.1-encoded data. Specially     crafted ASN.1 input could cause an application using libtasn1 to perform     an out-of-bounds access operation, causing the application to crash or,     possibly, execute arbitrary code. (CVE-2014-3468)

    Multiple incorrect buffer boundary check issues were discovered in     libtasn1. Specially crafted ASN.1 input could cause an application using     libtasn1 to crash. (CVE-2014-3467)

    Multiple NULL pointer dereference flaws were found in libtasn1's     asn1_read_value() function. Specially crafted ASN.1 input could cause an     application using libtasn1 to crash, if the application used the     aforementioned function in a certain way. (CVE-2014-3469)

    Red Hat would like to thank GnuTLS upstream for reporting these issues.

    All libtasn1 users are advised to upgrade to these updated packages, which     correct these issues. For the update to take effect, all applications     linked to the libtasn1 library must be restarted.

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.

Updated gnutls packages that fix multiple security issues are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS). The gnutls packages also include the libtasn1 library, which provides Abstract Syntax Notation One (ASN.1) parsing and structures management, and Distinguished Encoding Rules (DER) encoding and decoding functions.

A flaw was found in the way GnuTLS parsed session IDs from ServerHello messages of the TLS/SSL handshake. A malicious server could use this flaw to send an excessively long session ID value, which would trigger a buffer overflow in a connecting TLS/SSL client application using GnuTLS, causing the client application to crash or, possibly, execute arbitrary code. (CVE-2014-3466)

It was discovered that the asn1_get_bit_der() function of the libtasn1 library incorrectly reported the length of ASN.1-encoded data.
Specially crafted ASN.1 input could cause an application using libtasn1 to perform an out-of-bounds access operation, causing the application to crash or, possibly, execute arbitrary code.
(CVE-2014-3468)

Multiple incorrect buffer boundary check issues were discovered in libtasn1. Specially crafted ASN.1 input could cause an application using libtasn1 to crash. (CVE-2014-3467)

Multiple NULL pointer dereference flaws were found in libtasn1's asn1_read_value() function. Specially crafted ASN.1 input could cause an application using libtasn1 to crash, if the application used the aforementioned function in a certain way. (CVE-2014-3469)

Red Hat would like to thank GnuTLS upstream for reporting these issues. Upstream acknowledges Joonas Kuorilehto of Codenomicon as the original reporter of CVE-2014-3466.

Users of GnuTLS are advised to upgrade to these updated packages, which correct these issues. For the update to take effect, all applications linked to the GnuTLS or libtasn1 library must be restarted.

Updated libtasn1 packages that fix three security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

The libtasn1 library provides Abstract Syntax Notation One (ASN.1) parsing and structures management, and Distinguished Encoding Rules (DER) encoding and decoding functions.

It was discovered that the asn1_get_bit_der() function of the libtasn1 library incorrectly reported the length of ASN.1-encoded data.
Specially crafted ASN.1 input could cause an application using libtasn1 to perform an out-of-bounds access operation, causing the application to crash or, possibly, execute arbitrary code.
(CVE-2014-3468)

Multiple incorrect buffer boundary check issues were discovered in libtasn1. Specially crafted ASN.1 input could cause an application using libtasn1 to crash. (CVE-2014-3467)

Multiple NULL pointer dereference flaws were found in libtasn1's asn1_read_value() function. Specially crafted ASN.1 input could cause an application using libtasn1 to crash, if the application used the aforementioned function in a certain way. (CVE-2014-3469)

Red Hat would like to thank GnuTLS upstream for reporting these issues.

All libtasn1 users are advised to upgrade to these updated packages, which correct these issues. For the update to take effect, all applications linked to the libtasn1 library must be restarted.

new upstream release

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

New gnutls packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, and -current to fix security issues.

The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2294-1 advisory.

    It was discovered that Libtasn1 incorrectly handled certain ASN.1 data structures. An attacker could     exploit this with specially crafted ASN.1 data and cause applications using Libtasn1 to crash, resulting     in a denial of service. (CVE-2014-3467)

    It was discovered that Libtasn1 incorrectly handled negative bit lengths. An attacker could exploit this     with specially crafted ASN.1 data and cause applications using Libtasn1 to crash, resulting in a denial of     service, or possibly execute arbitrary code. (CVE-2014-3468)

    It was discovered that Libtasn1 incorrectly handled certain ASN.1 data. An attacker could exploit this     with specially crafted ASN.1 data and cause applications using Libtasn1 to crash, resulting in a denial of     service. (CVE-2014-3469)

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

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

Several vulnerabilities were discovered in libtasn1-3, a library that manages ASN1 (Abstract Syntax Notation One) structures. An attacker could use those to cause a denial of service via out-of-bounds access or NULL pointer dereference.

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

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-0596 advisory.

    [2.3-6]
    - added check for null pointer (#1102336)

    [2.3-5]
    - fix various DER decoding issues (#1102336)

    [2.3-4]
    - fix CVE-2012-1569 - missing length check when decoding DER lengths (#804920)

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.

It was discovered that the asn1_get_bit_der() function of the libtasn1 library incorrectly reported the length of ASN.1-encoded data.
Specially crafted ASN.1 input could cause an application using libtasn1 to perform an out-of-bounds access operation, causing the application to crash or, possibly, execute arbitrary code.
(CVE-2014-3468)

Multiple incorrect buffer boundary check issues were discovered in libtasn1. Specially crafted ASN.1 input could cause an application using libtasn1 to crash. (CVE-2014-3467)

Multiple NULL pointer dereference flaws were found in libtasn1's asn1_read_value() function. Specially crafted ASN.1 input could cause an application using libtasn1 to crash, if the application used the aforementioned function in a certain way. (CVE-2014-3469)

For the update to take effect, all applications linked to the libtasn1 library must be restarted.

New libtasn1 packages are available for Slackware 14.0, 14.1, and
-current to fix security issues.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2014:0687 advisory.

    The libtasn1 library provides Abstract Syntax Notation One (ASN.1) parsing     and structures management, and Distinguished Encoding Rules (DER) encoding     and decoding functions.

    It was discovered that the asn1_get_bit_der() function of the libtasn1     library incorrectly reported the length of ASN.1-encoded data. Specially     crafted ASN.1 input could cause an application using libtasn1 to perform     an out-of-bounds access operation, causing the application to crash or,     possibly, execute arbitrary code. (CVE-2014-3468)

    Multiple incorrect buffer boundary check issues were discovered in     libtasn1. Specially crafted ASN.1 input could cause an application using     libtasn1 to crash. (CVE-2014-3467)

    Multiple NULL pointer dereference flaws were found in libtasn1's     asn1_read_value() function. Specially crafted ASN.1 input could cause an     application using libtasn1 to crash, if the application used the     aforementioned function in a certain way. (CVE-2014-3469)

    Red Hat would like to thank GnuTLS upstream for reporting these issues.

    All libtasn1 users are advised to upgrade to these updated packages, which     correct these issues. For the update to take effect, all applications     linked to the libtasn1 library must be restarted.

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.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
76755	SuSE 11.3 Security Update : libtasn1 (SAT Patch Number 9528)	Nessus	SuSE Local Security Checks	2014/7/24	2021/1/19	medium
80678	Oracle Solaris Third-Party Patch Update : libtasn1 (multiple_vulnerabilities_in_gnu_libtasn1)	Nessus	Solaris Local Security Checks	2015/1/19	2021/1/14	medium
289692	MiracleLinux 4 : libtasn1-2.3-6.AXS4 (AXSA:2014-385:01)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/16	critical
289763	MiracleLinux 3 : gnutls-1.4.1-16.0.1.AXS3 (AXSA:2014-378:02)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/16	critical
74303	RHEL 6 : libtasn1 (RHSA-2014:0596)	Nessus	Red Hat Local Security Checks	2014/6/4	2024/11/4	critical
74309	CentOS 5 : gnutls (CESA-2014:0594)	Nessus	CentOS Local Security Checks	2014/6/5	2021/1/4	medium
74311	CentOS 6 : libtasn1 (CESA-2014:0596)	Nessus	CentOS Local Security Checks	2014/6/5	2021/1/4	medium
74317	Fedora 20 : libtasn1-3.6-1.fc20 (2014-6895)	Nessus	Fedora Local Security Checks	2014/6/5	2021/1/11	medium
74329	Slackware 13.0 / 13.1 / 13.37 / 14.0 / 14.1 / current : gnutls (SSA:2014-156-01)	Nessus	Slackware Local Security Checks	2014/6/6	2021/1/14	medium
74407	Fedora 19 : libtasn1-3.6-1.fc19 (2014-6919)	Nessus	Fedora Local Security Checks	2014/6/10	2021/1/11	medium
76704	Ubuntu 14.04 LTS : Libtasn1 vulnerabilities (USN-2294-1)	Nessus	Ubuntu Local Security Checks	2014/7/23	2024/8/27	critical
82222	Debian DLA-77-1 : libtasn1-3 security update	Nessus	Debian Local Security Checks	2015/3/26	2021/1/11	medium
74298	Oracle Linux 6 : libtasn1 (ELSA-2014-0596)	Nessus	Oracle Linux Local Security Checks	2014/6/4	2024/10/23	critical
74307	Scientific Linux Security Update : libtasn1 on SL6.x i386/x86_64 (20140603)	Nessus	Scientific Linux Local Security Checks	2014/6/4	2021/1/14	medium
74330	Slackware 14.0 / 14.1 / current : libtasn1 (SSA:2014-156-02)	Nessus	Slackware Local Security Checks	2014/6/6	2021/1/14	medium
76896	RHEL 7 : libtasn1 (RHSA-2014:0687)	Nessus	Red Hat Local Security Checks	2014/7/30	2025/4/15	critical

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