CVE-2018-13097

NameCVE-2018-13097
DescriptionAn issue was discovered in fs/f2fs/super.c in the Linux kernel through 4.17.3. There is an out-of-bounds read or a divide-by-zero error for an incorrect user_block_count in a corrupted f2fs image, leading to a denial of service (BUG).
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-1715-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
linux (PTS)jessie3.16.56-1+deb8u1vulnerable
jessie (security)3.16.72-1vulnerable
stretch4.9.168-1fixed
stretch (security)4.9.168-1+deb9u5fixed
buster4.19.37-5fixed
buster (security)4.19.37-5+deb10u2fixed
bullseye4.19.37-6fixed
sid5.2.7-1fixed
linux-4.9 (PTS)jessie (security)4.9.168-1+deb9u5~deb8u1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
linuxsource(unstable)4.19.9-1medium
linuxsourcestretch4.9.144-1medium
linux-4.9sourcejessie4.9.144-3.1~deb8u1mediumDLA-1715-1

Notes

[jessie] - linux <ignored> (Hard to backport and low priority outside of Android)
https://bugzilla.kernel.org/show_bug.cgi?id=200171
https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git/commit/?h=f2fs-dev&id=78bbd741456e31e0acb983283a8d3993ba859c15

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