CVE-2015-2327

NameCVE-2015-2327
DescriptionPCRE before 8.36 mishandles the /(((a\2)|(a*)\g<-1>))*/ pattern and related patterns with certain internal recursive back references, which allows remote attackers to cause a denial of service (segmentation fault) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
mongodb (PTS)jessie1:2.4.10-5+deb8u1vulnerable
stretch (security), stretch (lts), stretch1:3.2.11-2+deb9u2vulnerable
pcre3 (PTS)jessie2:8.35-3.3+deb8u4fixed
stretch2:8.39-3fixed
buster2:8.39-12fixed
bullseye2:8.39-13fixed
sid, trixie, bookworm2:8.39-15fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
mongodbsource(unstable)(unfixed)unimportant
pcre3sourcejessie2:8.35-3.3+deb8u1
pcre3source(unstable)2:8.35-7.2low

Notes

CVE for bundled version of pcre3 in mongodb
https://jira.mongodb.org/browse/SERVER-17252
Since 1:2.0.0-1 mongodb uses the system pcre3
[wheezy] - pcre3 <no-dsa> (Minor issue)
[squeeze] - pcre3 <no-dsa> (Minor issue)
https://bugs.exim.org/show_bug.cgi?id=1503
Fixed by: http://vcs.pcre.org/pcre?view=revision&revision=1495
https://www.openwall.com/lists/oss-security/2015/05/31/5

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