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HIGH

CVE-2022-39377

CVSS v3

7.8

HIGH

EPSS Score

1.3 %

exploit probability, as of 2026-10-19

CISA KEV

No

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • sysstatAlmaLinux:9all versions · fixed in 12.5.4-5.el9
  • sysstatAlmaLinux:8all versions · fixed in 11.7.3-9.el8

Vendor advisories

  • CVE-2022-39377 Red Hat Product Security26 products fixed · 1 known affected

    sysstat: arithmetic overflow in allocate_structures() on 32 bit systems

    sysstat.src as a component of Red Hat Enterprise Linux 7

  • RHSA-2023:2800 Red Hat Product Security13 products fixed

    Red Hat Security Advisory: sysstat security and bug fix update

  • RHSA-2023:2234 Red Hat Product Security13 products fixed

    Red Hat Security Advisory: sysstat security and bug fix update

Full record on NVD

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.

Technical details

Published
2022-11-08

Frequently asked questions

What is CVE-2022-39377?

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.

Is CVE-2022-39377 actively exploited?

Active exploitation of CVE-2022-39377 has not been confirmed. Its EPSS score was 1.3% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2022-39377?

CVE-2022-39377 has a CVSS v3 base score of 7.8 (HIGH severity).

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