CVE-2018-10902

NameCVE-2018-10902
DescriptionIt was found that the raw midi kernel driver does not protect against concurrent access which leads to a double realloc (double free) in snd_rawmidi_input_params() and snd_rawmidi_output_status() which are part of snd_rawmidi_ioctl() handler in rawmidi.c file. A malicious local attacker could possibly use this for privilege escalation.
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-1529-1, DLA-1531-1, DSA-4308-1
NVD severitymedium (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1vulnerable
jessie (security)3.16.59-1fixed
stretch4.9.130-2fixed
stretch (security)4.9.110-3+deb9u6fixed
buster, sid4.18.20-2fixed
linux-4.9 (PTS)jessie (security)4.9.110-3+deb9u5~deb8u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.17.15-1medium
linuxsourcejessie3.16.59-1mediumDLA-1529-1
linuxsourcestretch4.9.110-3+deb9u5mediumDSA-4308-1
linux-4.9sourcejessie4.9.110-3+deb9u5~deb8u1mediumDLA-1531-1

Notes

https://git.kernel.org/linus/39675f7a7c7e7702f7d5341f1e0d01db746543a0 (4.18-rc6)

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