CVE-2015-8777

NameCVE-2015-8777
DescriptionThe process_envvars function in elf/rtld.c in the GNU C Library (aka glibc or libc6) before 2.23 allows local users to bypass a pointer-guarding protection mechanism via a zero value of the LD_POINTER_GUARD environment variable.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-316-1, DSA-3480-1
Debian Bugs798316, 801691

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
glibc (PTS)jessie, jessie (lts)2.19-18+deb8u14fixed
stretch (security)2.24-11+deb9u1fixed
stretch (lts), stretch2.24-11+deb9u7fixed
buster (security), buster, buster (lts)2.28-10+deb10u4fixed
bullseye2.31-13+deb11u11fixed
bullseye (security)2.31-13+deb11u10fixed
bookworm2.36-9+deb12u8fixed
bookworm (security)2.36-9+deb12u7fixed
sid, trixie2.40-3fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
eglibcsourcesqueeze2.11.3-4+deb6u7
eglibcsourcewheezy2.13-38+deb7u10DSA-3480-1
eglibcsource(unstable)(unfixed)
glibcsourcejessie2.19-18+deb8u2
glibcsource(unstable)2.21-1798316, 801691

Notes

https://www.openwall.com/lists/oss-security/2015/09/05/8
Upstream bug https://sourceware.org/bugzilla/show_bug.cgi?id=18928
https://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commit;h=a014cecd82b71b70a6a843e250e06b541ad524f7

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