The remote MiracleLinux 7 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2015-669:01 advisory.

    The GNU versions of commonly used grep utilities. Grep searches through     textual input for lines which contain a match to a specified pattern and then     prints the matching lines. GNU's grep utilities include grep, egrep and fgrep.
    GNU grep is needed by many scripts, so it shall be installed on every system.
    Security issues fixed with this release:
    CVE-2015-1345     The bmexec_trans function in kwset.c in grep 2.19 through 2.21 allows     local users to cause a denial of service (out-of-bounds heap read and     crash) via crafted input when using the -F option.
    Fixed bugs:
    * Prior to this update, the \w and \W symbols were inconsistently matched to the [:alnum:] character     class. Consequently, using regular expressions with \w and \W could lead to incorrect results. With     this update, \w is consistently matched to the [_[:alnum:]] character, and \W is consistently matched     to the [^_[:alnum:]] character.
    * Previously, the Perl Compatible Regular Expression (PCRE) matcher (selected by the -P parameter in     grep) did not work correctly when matching non-UTF-8 text in UTF-8 locales. Consequently, an error message     about invalid UTF-8 byte sequence characters was returned. To fix this bug, patches from upstream have     been applied to the grep utility. As a result, PCRE now skips non-UTF-8 characters as non-matching text     without returning any error message.

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

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

The remote host is affected by the vulnerability described in GLSA-201502-14 (grep: Denial of Service)

    A heap buffer overrun has been fixed in the bmexec_trans function in       kwset.c.
  Impact :

    A local user can cause Denial of Service.
  Workaround :

    There is no known workaround at this time.

The remote MiracleLinux 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2015-422:01 advisory.

    The GNU versions of commonly used grep utilities. Grep searches through     textual input for lines which contain a match to a specified pattern and then     prints the matching lines. GNU's grep utilities include grep, egrep and fgrep.
    GNU grep is needed by many scripts, so it shall be installed on every system.
    Security issues fixed with this release:
    CVE-2012-5667     CVE-2015-1345     Fixed bugs:
    * Prior to this update, the \w and \W symbols were inconsistently matched to the     [:alnum:] character class. Consequently, regular expressions that used \w and \W     in some cases had incorrect results. An upstream patch which fixes the matching     problem has been applied to fix this bug.
    * Previously, the --fixed-regexp command-line option was not included in the     grep(1) manual page. Consequently, the manual page was inconsistent with the     built-in help of the grep utility. To fix this bug, grep(1) has been updated to     include a note informing the user that --fixed-regexp is an obsolete option.
    * Previously, the Perl Compatible Regular Expression (PCRE) library did not work     correctly when matching non-UTF-8 text in UTF-8 mode. Consequently, an error     message about invalid UTF-8 byte sequence characters was returned. To fix this     bug, patches from upstream have been applied to the PCRE library and the grep     utility.

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.

grep was updated to fix one security issue.

This security issue was fixed :

  - Heap buffer overrun with a carefully crafted combination     of input and regexp (CVE-2015-1345).

Updated grep packages that fix one security issue and several bugs are now available for Red Hat Enterprise Linux 7.

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

The grep utility searches through textual input for lines that contain a match to a specified pattern and then prints the matching lines. The GNU grep utilities include grep, egrep, and fgrep.

A heap-based buffer overflow flaw was found in the way grep processed certain pattern and text combinations. An attacker able to trick a user into running grep on specially crafted input could use this flaw to crash grep or, potentially, read from uninitialized memory.
(CVE-2015-1345)

This update also fixes the following bugs :

* Prior to this update, the \w and \W symbols were inconsistently matched to the [:alnum:] character class. Consequently, using regular expressions with '\w' and '\W' could lead to incorrect results. With this update, '\w' is consistently matched to the [_[:alnum:]] character, and '\W' is consistently matched to the [^_[:alnum:]] character. (BZ#1159012)

* Previously, the Perl Compatible Regular Expression (PCRE) matcher (selected by the '-P' parameter in grep) did not work correctly when matching non-UTF-8 text in UTF-8 locales. Consequently, an error message about invalid UTF-8 byte sequence characters was returned. To fix this bug, patches from upstream have been applied to the grep utility. As a result, PCRE now skips non-UTF-8 characters as non-matching text without returning any error message. (BZ#1217080)

All grep users are advised to upgrade to these updated packages, which contain backported patches to correct these issues.

The remote Oracle Linux 7 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2015-2111 advisory.

    - Fixed buffer overrun for grep -F       Resolves: CVE-2015-1345

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

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

A heap-based buffer overflow flaw was found in the way grep processed certain pattern and text combinations. An attacker able to trick a user into running grep on specially crafted input could use this flaw to crash grep or, potentially, read from uninitialized memory.

Updated grep packages that fix two security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having Low 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 grep utility searches through textual input for lines that contain a match to a specified pattern and then prints the matching lines. The GNU grep utilities include grep, egrep, and fgrep.

An integer overflow flaw, leading to a heap-based buffer overflow, was found in the way grep parsed large lines of data. An attacker able to trick a user into running grep on a specially crafted data file could use this flaw to crash grep or, potentially, execute arbitrary code with the privileges of the user running grep. (CVE-2012-5667)

A heap-based buffer overflow flaw was found in the way grep processed certain pattern and text combinations. An attacker able to trick a user into running grep on specially crafted input could use this flaw to crash grep or, potentially, read from uninitialized memory.
(CVE-2015-1345)

The grep packages have been upgraded to upstream version 2.20, which provides a number of bug fixes and enhancements over the previous version. Notably, the speed of various operations has been improved significantly. Now, the recursive grep utility uses the fts function of the gnulib library for directory traversal, so that it can handle much larger directories without reporting the 'File name too long' error message, and it can operate faster when dealing with large directory hierarchies. (BZ#982215, BZ#1064668, BZ#1126757, BZ#1167766, BZ#1171806)

This update also fixes the following bugs :

* Prior to this update, the \w and \W symbols were inconsistently matched to the [:alnum:] character class. Consequently, regular expressions that used \w and \W in some cases had incorrect results.
An upstream patch which fixes the matching problem has been applied, and \w is now matched to the [_ [:alnum:]] character and \W to the [^_[:alnum:]] character consistently. (BZ#799863)

* Previously, the '--fixed-regexp' command-line option was not included in the grep(1) manual page. Consequently, the manual page was inconsistent with the built-in help of the grep utility. To fix this bug, grep(1) has been updated to include a note informing the user that '--fixed-regexp' is an obsolete option. Now, the built-in help and manual page are consistent regarding the '--fixed-regexp' option.
(BZ#1103270)

* Previously, the Perl Compatible Regular Expression (PCRE) library did not work correctly when matching non-UTF-8 text in UTF-8 mode.
Consequently, an error message about invalid UTF-8 byte sequence characters was returned. To fix this bug, patches from upstream have been applied to the PCRE library and the grep utility. As a result, PCRE now skips non-UTF-8 characters as non-matching text without returning any error message. (BZ#1193030)

All grep users are advised to upgrade to these updated packages, which correct these issues and add these enhancements.

The remote Oracle Linux 6 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2015-1447 advisory.

    - Fixed buffer overrun for grep -F       Resolves: CVE-2015-1345

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.

A heap-based buffer overflow flaw was found in the way grep processed certain pattern and text combinations. An attacker able to trick a user into running grep on specially crafted input could use this flaw to crash grep or, potentially, read from uninitialized memory.
(CVE-2015-1345)

This update also fixes the following bugs :

  - Prior to this update, the \w and \W symbols were     inconsistently matched to the [:alnum:] character class.
    Consequently, using regular expressions with '\w' and     '\W' could lead to incorrect results. With this update,     '\w' is consistently matched to the [_[:alnum:]]     character, and '\W' is consistently matched to the     [^_[:alnum:]] character.

  - Previously, the Perl Compatible Regular Expression     (PCRE) matcher (selected by the '-P' parameter in grep)     did not work correctly when matching non-UTF-8 text in     UTF-8 locales. Consequently, an error message about     invalid UTF-8 byte sequence characters was returned. To     fix this bug, patches from upstream have been applied to     the grep utility. As a result, PCRE now skips non-UTF-8     characters as non-matching text without returning any     error message.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
289441	MiracleLinux 7 : grep-2.20-2.el7 (AXSA:2015-669:01)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/16	medium
81535	GLSA-201502-14 : grep: Denial of Service	Nessus	Gentoo Local Security Checks	2015/2/26	2021/1/11	low
289608	MiracleLinux 4 : grep-2.20-3.AXS4 (AXSA:2015-422:01)	Nessus	Miracle Linux Local Security Checks	2026/1/16	2026/1/16	medium
81253	openSUSE Security Update : grep (openSUSE-2015-121)	Nessus	SuSE Local Security Checks	2015/2/10	2021/1/19	low
86931	RHEL 7 : grep (RHSA-2015:2111)	Nessus	Red Hat Local Security Checks	2015/11/19	2019/10/24	low
87022	Oracle Linux 7 : grep (ELSA-2015-2111)	Nessus	Oracle Linux Local Security Checks	2015/11/24	2024/10/22	medium
87973	Amazon Linux AMI : grep (ALAS-2016-639)	Nessus	Amazon Linux Local Security Checks	2016/1/19	2018/4/18	low
84948	RHEL 6 : grep (RHSA-2015:1447)	Nessus	Red Hat Local Security Checks	2015/7/23	2021/2/5	medium
85108	Oracle Linux 6 : grep (ELSA-2015-1447)	Nessus	Oracle Linux Local Security Checks	2015/7/30	2024/10/22	medium
87557	Scientific Linux Security Update : grep on SL7.x x86_64 (20151119)	Nessus	Scientific Linux Local Security Checks	2015/12/22	2021/1/14	low

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