CVE-2017-2671

NameCVE-2017-2671
DescriptionThe ping_unhash function in net/ipv4/ping.c in the Linux kernel through 4.10.8 is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe, which allows local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-922-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)stretch4.9.228-1fixed
stretch (security)4.9.210-1+deb9u1fixed
buster4.19.132-1fixed
buster (security)4.19.118-2+deb10u1fixed
bullseye5.8.7-1fixed
sid5.8.10-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsourcewheezy3.2.88-1DLA-922-1
linuxsourcejessie3.16.43-1
linuxsource(unstable)4.9.25-1

Notes

https://www.openwall.com/lists/oss-security/2017/03/24/6
Fixed by: https://git.kernel.org/linus/43a6684519ab0a6c52024b5e25322476cabad893

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