| Name | CVE-2017-7244 |
| Description | The _pcre32_xclass function in pcre_xclass.c in libpcre1 in PCRE 8.40 allows remote attackers to cause a denial of service (invalid memory read) via a crafted file. |
| 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 | 858683 |
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 | vulnerable |
| 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 | wheezy | (not affected) | | | |
| pcre3 | source | (unstable) | 2:8.39-3 | | | 858683 |
Notes
[jessie] - pcre3 <no-dsa> (Minor issue; 32bit character support not enabled)
[wheezy] - pcre3 <not-affected> (Vulnerable code not present)
https://bugs.exim.org/show_bug.cgi?id=2054
https://blogs.gentoo.org/ago/2017/03/20/libpcre-invalid-memory-read-in-_pcre32_xclass-pcre_xclass-c/
pcre32 support enabled only in pcre3/1:8.35-4
Bisected and the following change addresses the issue for pcre3:
http://vcs.pcre.org/pcre?view=revision&revision=1688 (8.41)