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Test ID:1.3.6.1.4.1.25623.1.1.13.2021.026.01
Category:Slackware Local Security Checks
Title:Slackware: Security Advisory (SSA:2021-026-01)
Summary:The remote host is missing an update for the 'sudo' package(s) announced via the SSA:2021-026-01 advisory.
Description:Summary:
The remote host is missing an update for the 'sudo' package(s) announced via the SSA:2021-026-01 advisory.

Vulnerability Insight:
New sudo packages are available for Slackware 14.0, 14.1, 14.2, and -current to
fix security issues.


Here are the details from the Slackware 14.2 ChangeLog:
+--------------------------+
patches/packages/sudo-1.9.5p2-i586-1_slack14.2.txz: Upgraded.
When invoked as sudoedit, the same set of command line options
are now accepted as for 'sudo -e'. The -H and -P options are
now rejected for sudoedit and 'sudo -e' which matches the sudo
1.7 behavior. This is part of the fix for CVE-2021-3156.
Fixed a potential buffer overflow when unescaping backslashes
in the command's arguments. Normally, sudo escapes special
characters when running a command via a shell (sudo -s or sudo
-i). However, it was also possible to run sudoedit with the -s
or -i flags in which case no escaping had actually been done,
making a buffer overflow possible. This fixes CVE-2021-3156.
For more information, see:
[link moved to references]
(* Security fix *)
+--------------------------+

Affected Software/OS:
'sudo' package(s) on Slackware 14.0, Slackware 14.1, Slackware 14.2, Slackware current.

Solution:
Please install the updated package(s).

CVSS Score:
7.2

CVSS Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-3156
CERT/CC vulnerability note: VU#794544
https://www.kb.cert.org/vuls/id/794544
Cisco Security Advisory: 20210129 Sudo Privilege Escalation Vulnerability Affecting Cisco Products: January 2021
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM
https://kc.mcafee.com/corporate/index?page=content&id=SB10348
https://security.netapp.com/advisory/ntap-20210128-0001/
https://security.netapp.com/advisory/ntap-20210128-0002/
https://support.apple.com/kb/HT212177
https://www.sudo.ws/stable.html#1.9.5p2
https://www.synology.com/security/advisory/Synology_SA_21_02
Debian Security Information: DSA-4839 (Google Search)
https://www.debian.org/security/2021/dsa-4839
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/
http://seclists.org/fulldisclosure/2021/Jan/79
http://seclists.org/fulldisclosure/2021/Feb/42
http://seclists.org/fulldisclosure/2024/Feb/3
https://security.gentoo.org/glsa/202101-33
http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html
http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html
http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html
http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html
https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability
https://www.openwall.com/lists/oss-security/2021/01/26/3
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/security-alerts/cpuapr2022.html
https://www.oracle.com/security-alerts/cpuoct2021.html
https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html
http://www.openwall.com/lists/oss-security/2021/01/26/3
http://www.openwall.com/lists/oss-security/2021/01/27/1
http://www.openwall.com/lists/oss-security/2021/01/27/2
http://www.openwall.com/lists/oss-security/2021/02/15/1
http://www.openwall.com/lists/oss-security/2021/09/14/2
http://www.openwall.com/lists/oss-security/2024/01/30/6
http://www.openwall.com/lists/oss-security/2024/01/30/8
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