CVE-2015-2325

Published: 01 April 2015

The compile_branch function in PCRE before 8.37 allows context-dependent attackers to compile incorrect code, cause a denial of service (out-of-bounds heap read and crash), or possibly have other unspecified impact via a regular expression with a group containing a forward reference repeated a large number of times within a repeated outer group that has a zero minimum quantifier.

Priority

Low

CVSS 3 base score: 7.8

Status

Package Release Status
pcre3
Launchpad, Ubuntu, Debian
Upstream Needed

Ubuntu 14.04 ESM (Trusty Tahr)
Released (1:8.31-2ubuntu2.1)
Patches:
Upstream: http://vcs.pcre.org/pcre?view=revision&revision=1528

Notes

AuthorNote
tyhicks
Unable to trigger the overflow in Vivid, Utopic, or Trusty.
seth-arnold
seyeongkim reports that he was able to reproduce the issue
on vivid and wily
mdeslaur
valgrind does show an invalid read, even if it doesn't end in
a crash
can't reproduce on precise

was supposed to be fixed in wily (2:8.35-7ubuntu2) but got
reverted in (2:8.35-7ubuntu5) by mistake

CVE-2015-2325_CVE-2015-2326_CVE-2015-3210_CVE-2015-5073.patch
in jessie

References

Bugs