CVE-2018-1125: canonical ubuntu_linux Stack-based Buffer Overflow

Vulnerability summary

CVE-2018-1125 is a high (CVSS 7.5) Stack-based Buffer Overflow vulnerability in canonical ubuntu_linux. EPSS estimates a 1.86% chance of exploitation in the next 30 days, higher than 78.8% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 23-05-2018
   PublishedVulnerability first disclosed.
2. 17-12-2025
   Last modifiedVulnerability information updated.

Description

procps-ng before version 3.3.15 is vulnerable to a stack buffer overflow in pgrep. This vulnerability is mitigated by FORTIFY, as it involves strncat() to a stack-allocated string. When pgrep is compiled with FORTIFY (as on Red Hat Enterprise Linux and Fedora), the impact is limited to a crash.

• CWE-121Stack-based Buffer OverflowA stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
• CWE-787Out-of-bounds WriteThe product writes data past the end, or before the beginning, of the intended buffer.