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

  - A double free exists in the another_hunk function in     pch.c in GNU patch through 2.7.6.(CVE-2018-6952)

  - Directory traversal vulnerability in GNU patch versions     which support Git-style patching before 2.7.3 allows     remote attackers to write to arbitrary files with the     permissions of the target user via a .. (dot dot) in a     diff file name.(CVE-2015-1395)

  - An issue was discovered in GNU patch before 2.7.6.
    Out-of-bounds access within pch_write_line() in pch.c     can possibly lead to DoS via a crafted input     file.(CVE-2016-10713)

  - GNU patch 2.7.2 and earlier allows remote attackers to     cause a denial of service (memory consumption and     segmentation fault) via a crafted diff     file.(CVE-2014-9637)

  - This vulnerability has been modified since it was last     analyzed by the NVD. It is awaiting reanalysis which     may result in further changes to the information     provided.(CVE-2015-1196)

  - GNU patch through 2.7.6 is vulnerable to OS shell     command injection that can be exploited by opening a     crafted patch file that contains an ed style diff     payload with shell metacharacters. The ed editor does     not need to be present on the vulnerable system. This     is different from CVE-2018-1000156.(CVE-2019-13638)

  - do_ed_script in pch.c in GNU patch through 2.7.6 does     not block strings beginning with a ! character. NOTE:
    this is the same commit as for CVE-2019-13638, but the     ! syntax is specific to ed, and is unrelated to a shell     metacharacter.(CVE-2018-20969)

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.

Security Fix(es) :

  - patch: Out-of-bounds access in pch_write_line function     in pch.c (CVE-2016-10713)

  - patch: Double free of memory in pch.c:another_hunk()     causes a crash (CVE-2018-6952)

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

Red Hat Product Security has rated this update as having a security impact of Low. 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 patch program applies diff files to originals. The diff command is used to compare an original to a changed file. Diff lists the changes made to the file. A person who has the original file can then use the patch command with the diff file to add the changes to their original file (patching the file).

Security Fix(es) :

* patch: Out-of-bounds access in pch_write_line function in pch.c (CVE-2016-10713)

* patch: Double free of memory in pch.c:another_hunk() causes a crash (CVE-2018-6952)

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

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.7 Release Notes linked from the References section.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3624-1 advisory.

    It was discovered that Patch incorrectly handled certain files. An attacker could possibly use this to     cause a denial of service. (CVE-2016-10713)

    It was discovered that Patch incorrectly handled certain input validation. An attacker could possibly use     this to execute arbitrary code. (CVE-2018-1000156)

    It was discovered that Patch incorrectly handled certain inputs. An attacker could possibly use this to     cause a denial of service. (CVE-2018-6951)

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.

This update for patch fixes several issues. These security issues were fixed :

  - CVE-2018-1000156: patch: Malicious patch files cause ed     to execute arbitrary commands (bsc#1088420).

  - CVE-2014-9637: Prevent DoS by remote attackers (memory     consumption and segmentation fault) via a crafted diff     file (bsc#914891).

  - CVE-2016-10713: Prevent out-of-bounds access within     pch_write_line() that could have lead to DoS via a     crafted input file (bsc#1080918).

  - CVE-2010-4651: Fixed a directory traversal bug     (bsc#662957) :

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 NewStart CGSL host, running version CORE 5.05 / MAIN 5.05, has patch packages installed that are affected by multiple vulnerabilities:

  - An issue was discovered in GNU patch before 2.7.6. Out-     of-bounds access within pch_write_line() in pch.c can     possibly lead to DoS via a crafted input file.
    (CVE-2016-10713)

  - A double free exists in the another_hunk function in     pch.c in GNU patch through 2.7.6. (CVE-2018-6952)

  - GNU patch through 2.7.6 is vulnerable to OS shell     command injection that can be exploited by opening a     crafted patch file that contains an ed style diff     payload with shell metacharacters. The ed editor does     not need to be present on the vulnerable system. This is     different from CVE-2018-1000156. (CVE-2019-13638)

  - do_ed_script in pch.c in GNU patch through 2.7.6 does     not block strings beginning with a ! character. NOTE:
    this is the same commit as for CVE-2019-13638, but the !     syntax is specific to ed, and is unrelated to a shell     metacharacter. (CVE-2018-20969)

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

This update for patch fixes the following issues :

Security issues fixed :

  - CVE-2018-1000156: Malicious patch files cause ed to     execute arbitrary commands (bsc#1088420).

  - CVE-2018-6951: Fixed NULL pointer dereference in the     intuit_diff_type function in pch.c (bsc#1080918).

  - CVE-2016-10713: Fixed out-of-bounds access within     pch_write_line() in pch.c (bsc#1080918).

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

The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2019-2033 advisory.

    - Fixed CVE-2016-10713 - Out-of-bounds access in pch_write_line function
    - Fixed CVE-2018-6952 - Double free of memory

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

  - An issue was discovered in GNU patch before 2.7.6. Out-of-bounds access within pch_write_line() in pch.c     can possibly lead to DoS via a crafted input file. (CVE-2016-10713)

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

ID	Name	Product	Family	Published	Updated	Severity
135608	EulerOS Virtualization 3.0.2.2 : patch (EulerOS-SA-2020-1446)	Nessus	Huawei Local Security Checks	4/16/2020	3/15/2024	high
128249	Scientific Linux Security Update : patch on SL7.x x86_64 (20190806)	Nessus	Scientific Linux Local Security Checks	8/27/2019	5/1/2024	high
128334	CentOS 7 : patch (CESA-2019:2033)	Nessus	CentOS Local Security Checks	8/30/2019	12/31/2019	high
109002	Ubuntu 14.04 LTS / 16.04 LTS : Patch vulnerabilities (USN-3624-1)	Nessus	Ubuntu Local Security Checks	4/11/2018	8/27/2024	high
109599	SUSE SLES11 Security Update : patch (SUSE-SU-2018:1162-1)	Nessus	SuSE Local Security Checks	5/8/2018	10/11/2024	high
132496	NewStart CGSL CORE 5.05 / MAIN 5.05 : patch Multiple Vulnerabilities (NS-SA-2019-0253)	Nessus	NewStart CGSL Local Security Checks	12/31/2019	1/14/2021	high
109540	openSUSE Security Update : patch (openSUSE-2018-416)	Nessus	SuSE Local Security Checks	5/3/2018	10/14/2024	high
180783	Oracle Linux 7 : patch (ELSA-2019-2033)	Nessus	Oracle Linux Local Security Checks	9/7/2023	10/23/2024	high
219290	Linux Distros Unpatched Vulnerability : CVE-2016-10713	Nessus	Misc.	3/4/2025	9/2/2026	medium

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