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CVE-2014-9769

Published: 29 March 2016

pcre_jit_compile.c in PCRE 8.35 does not properly use table jumps to optimize nested alternatives, which allows remote attackers to cause a denial of service (stack memory corruption) or possibly have unspecified other impact via a crafted string, as demonstrated by packets encountered by Suricata during use of a regular expression in an Emerging Threats Open ruleset.

Notes

AuthorNote
mdeslaur
introduced by http://vcs.pcre.org/pcre?view=revision&revision=1434
in 8.35

Priority

Medium

Cvss 3 Severity Score

7.3

Score breakdown

Status

Package Release Status
pcre3
Launchpad, Ubuntu, Debian
trusty Not vulnerable
(1:8.31-2ubuntu2.1)
upstream Needs triage

wily
Released (2:8.35-7.1ubuntu1.3)
xenial Not vulnerable
(2:8.38-3.1)
yakkety Not vulnerable
(2:8.38-3.1)
zesty Not vulnerable
(2:8.38-3.1)
precise Not vulnerable
(8.12-4ubuntu0.1)
Patches:
upstream: http://vcs.pcre.org/pcre?view=revision&revision=1475

Severity score breakdown

Parameter Value
Base score 7.3
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact Low
Availability impact Low
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L