| Name | CVE-2015-2326 |
| Description | The pcre_compile2 function in PCRE before 8.37 allows context-dependent attackers to compile incorrect code and cause a denial of service (out-of-bounds read) via regular expression with a group containing both a forward referencing subroutine call and a recursive back reference, as demonstrated by "((?+1)(\1))/". |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 783285 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| pcre3 (PTS) | jessie | 2:8.35-3.3+deb8u4 | fixed |
| stretch | 2:8.39-3 | fixed |
| buster | 2:8.39-12 | fixed |
| bullseye | 2:8.39-13 | fixed |
| bookworm | 2:8.39-15 | fixed |
| sid | 2:8.39-15.1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| pcre3 | source | squeeze | (not affected) | | | |
| pcre3 | source | wheezy | (not affected) | | | |
| pcre3 | source | jessie | 2:8.35-3.3+deb8u1 | | | |
| pcre3 | source | (unstable) | 2:8.35-7.2 | | | 783285 |
Notes
[wheezy] - pcre3 <not-affected> (Vulnerable code introuced while refactoring between 8.33 and 8.36)
[squeeze] - pcre3 <not-affected> (Vulnerable code introuced while refactoring between 8.33 and 8.36)
http://bugs.exim.org/show_bug.cgi?id=1592
http://vcs.pcre.org/pcre?view=revision&revision=1529
Reproduced invalid read in pcre3/2:8.35-3.3
Issue introduced as a side effect of refactoring happened between 8.33 and 8.36