CVE-2018-1126

procps: incorrect integer size in proc/alloc.* leading to truncation / integer overflow issues

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Severity

Moderate

Red Hat Product Security

4.8

CVSS 3.0

Review impact separately from score.

Published · May 18, 2018

Updated · June 30, 2026

Description

A flaw was found where procps-ng provides wrappers for standard C allocators that took unsigned int instead of size_t parameters. On platforms where these differ (such as x86_64), this could cause integer truncation, leading to undersized regions being returned to callers that could then be overflowed. The only known exploitable vector for this issue is CVE-2018-1124.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 4.8
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L

CWE-190 · Integer Overflow or Wraparound