CVE-2010-4052

NameCVE-2010-4052
DescriptionStack consumption vulnerability in the regcomp implementation in the GNU C Library (aka glibc or libc6) through 2.11.3, and 2.12.x through 2.12.2, allows context-dependent attackers to cause a denial of service (resource exhaustion) via a regular expression containing adjacent repetition operators, as demonstrated by a {10,}{10,}{10,}{10,} sequence in the proftpd.gnu.c exploit for ProFTPD.
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
glibc (PTS)buster2.28-10+deb10u1fixed
buster (security)2.28-10+deb10u2fixed
bullseye2.31-13+deb11u8fixed
bullseye (security)2.31-13+deb11u7fixed
bookworm, bookworm (security)2.36-9+deb12u4fixed
sid, trixie2.37-15fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
eglibcsource(unstable)2.13-1unimportant
glibcsource(unstable)2.19-4unimportant

Notes

Deficiency in the regexp engine of glibc, while there implementations which
process such expressions more efficiently, imposing a limit lies within
the application accepting it from user input

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