CVE-2018-13099

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-07-03 · updated 2026-06-17
Weakness: CWE-125

Description

An issue was discovered in fs/f2fs/inline.c in the Linux kernel through 4.4. A denial of service (out-of-bounds memory access and BUG) can occur for a modified f2fs filesystem image in which an inline inode contains an invalid reserved blkaddr.

Affected products

Canonical Ubuntu Linux: 14.04, 16.04, 18.04
Debian Linux: 8.0, 9.0
Linux kernel: through 4.4
openSUSE Leap: 42.3

References

http://lists.opensuse.org/opensuse-security-announce/2018-10/msg00033.html
http://packetstormsecurity.com/files/151420/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
http://www.securityfocus.com/bid/104680
https://bugzilla.kernel.org/show_bug.cgi?id=200179
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=3bfe2049c222b23342ff2a216cd5a869e8a14897
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4dbe38dc386910c668c75ae616b99b823b59f3eb
https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
https://seclists.org/bugtraq/2018/Oct/4
https://seclists.org/bugtraq/2019/Jan/52
https://sourceforge.net/p/linux-f2fs/mailman/message/36356878/
https://usn.ubuntu.com/3932-1/
https://usn.ubuntu.com/3932-2/

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