Divide By Zero Affecting perf package, versions <0:2.6.32-71.18.1.el6


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.04% (1st percentile)

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  • Snyk IDSNYK-RHEL6-PERF-1425441
  • published26 Jul 2021
  • disclosed10 Nov 2010

Introduced: 10 Nov 2010

CVE-2010-4165  (opens in a new tab)
CWE-369  (opens in a new tab)

How to fix?

Upgrade RHEL:6 perf to version 0:2.6.32-71.18.1.el6 or higher.
This issue was patched in RHSA-2011:0283.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL. See How to fix? for RHEL:6 relevant fixed versions and status.

The do_tcp_setsockopt function in net/ipv4/tcp.c in the Linux kernel before 2.6.37-rc2 does not properly restrict TCP_MAXSEG (aka MSS) values, which allows local users to cause a denial of service (OOPS) via a setsockopt call that specifies a small value, leading to a divide-by-zero error or incorrect use of a signed integer.

References

CVSS Scores

version 3.1