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CVE-2015-2325

Publication date 1 April 2015

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
pcre3 15.10 wily
Fixed 2:8.35-7.1ubuntu1.3
15.04 vivid
Fixed 2:8.35-3.3ubuntu1.1
14.10 utopic Ignored end of life
14.04 LTS trusty
Fixed 1:8.31-2ubuntu2.1
12.04 LTS precise
Not affected
10.04 LTS lucid Ignored end of life

Notes

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

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
pcre3

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references