CVE-2018-14611

low-risk

Published 2018-07-27

An issue was discovered in the Linux kernel through 4.17.10. There is a use-after-free in try_merge_free_space() when mounting a crafted btrfs image, because of a lack of chunk type flag checks in btrfs_check_chunk_valid in fs/btrfs/volumes.c.

Do I need to act?

0.26% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (2)

Linux Kernel

Debian Linux

Affected Vendors

Debian Linux

References (20)

Third Party Advisory http://www.securityfocus.com/bid/104917

Exploit https://bugzilla.kernel.org/show_bug.cgi?id=199839

Mailing List https://lists.debian.org/debian-lts-announce/2019/03/msg00017.html

https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html

https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html

Patch https://patchwork.kernel.org/patch/10503099/

https://usn.ubuntu.com/3932-1/

https://usn.ubuntu.com/3932-2/

https://usn.ubuntu.com/4094-1/

https://usn.ubuntu.com/4118-1/