CVE-2022-39377
sysstat Incorrect Buffer Size calculation on 32-bit systems results in RCE via buffer overflow
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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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6F26ALXWYHT4LN2AHPZM34OQEXTJE3JZ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7X6WKTODOUDV6M3HZMASYNZP6EM4N7W4/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PHUVUDIVDJZ7AVXD3XX3NBXXXKPOKN3N/
- https://security.gentoo.org/glsa/202211-07
References (7)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
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