GLSA 202211-08: sudo: Heap-Based Buffer Overread

http://security.gentoo.org/

Severity:	normal
Title:	sudo: Heap-Based Buffer Overread
Date:	11/22/2022
Bugs:	#879209
ID:	202211-08

Synopsis

A vulnerability has been discovered in sudo which could result in denial of service.

Background

sudo allows a system administrator to give users the ability to run commands as other users.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-admin/sudo	< 1.9.12-r1	>= 1.9.12-r1	All supported architectures

Description

In certain password input handling, sudo incorrectly assumes the password input is at least nine bytes in size, leading to a heap buffer overread.

Impact

In the worst case, the heap buffer overread can result in the denial of service of the sudo process.

Workaround

There is no known workaround at this time.

Resolution

All sudo users should upgrade to the latest version:

          # emerge --sync
          # emerge --ask --oneshot --verbose ">=app-admin/sudo-1.9.12-r1"

References

CVE-2022-43995

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202211-08.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.