CVE-2017-8804

NameCVE-2017-8804
DescriptionThe xdr_bytes and xdr_string functions in the GNU C Library (aka glibc or libc6) 2.25 mishandle failures of buffer deserialization, which allows remote attackers to cause a denial of service (virtual memory allocation, or memory consumption if an overcommit setting is not used) via a crafted UDP packet to port 111, a related issue to CVE-2017-8779.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
NVD severityhigh (attack range: remote)
Debian Bugs862086

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
eglibc (PTS)wheezy2.13-38+deb7u10vulnerable
wheezy (security)2.13-38+deb7u12vulnerable
glibc (PTS)jessie (security), jessie2.19-18+deb8u10vulnerable
stretch (security), stretch2.24-11+deb9u1vulnerable
buster, sid2.25-3vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
eglibcsource(unstable)(unfixed)high
glibcsource(unstable)(unfixed)high862086

Notes

[stretch] - glibc <no-dsa> (Can be fixed in a point update)
[jessie] - glibc <no-dsa> (Can be fixed in a point update)
[wheezy] - eglibc <no-dsa> (Can be fixed later)
http://www.openwall.com/lists/oss-security/2017/05/05/2
https://sourceware.org/bugzilla/show_bug.cgi?id=21461
https://sourceware.org/ml/libc-alpha/2017-05/msg00105.html
https://bugzilla.suse.com/show_bug.cgi?id=1037559#c7
Proposed patch: https://sourceware.org/ml/libc-alpha/2017-05/msg00105.html

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