CVE-2022-39377

sysstat Incorrect Buffer Size calculation on 32-bit systems results in RCE via buffer overflow

State: Published
Severity: 7.0 High
Published: Nov 8, 2022
Updated: Nov 3, 2025
Reserved: Sep 2, 2022

Description

sysstat is a set of system performance tools for the Linux operating system. On 32 bit systems, in versions 9.1.16 and newer but prior to 12.7.1, allocate_structures contains a size_t overflow in sa_common.c. The allocate_structures function insufficiently checks bounds before arithmetic multiplication, allowing for an overflow in the size allocated for the buffer representing system activities. This issue may lead to Remote Code Execution (RCE). This issue has been patched in version 12.7.1.

Scores

CVSS	Score	Vector	Source
3.1	7.0 High	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-131 Incorrect Calculation of Buffer Size
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
sysstatsysstat	>= 9.1.16, < 12.7.1Affected

References

https://github.com/sysstat/sysstat/security/advisories/GHSA-q8r6-g56f-9w7x
[debian-lts-announce] 20221113 [SECURITY] [DLA 3188-1] sysstat security updatemailing-list
FEDORA-2022-dbe48a4bc7vendor-advisory
FEDORA-2022-5adda2d05fvendor-advisory
FEDORA-2022-9f3af921a5vendor-advisory
GLSA-202211-07vendor-advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00017.html

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