CVE-2018-10840

Severity: medium (CVSS 6.6 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-07-16 · updated 2026-06-17
Weakness: CWE-122

Description

Linux kernel is vulnerable to a heap-based buffer overflow in the fs/ext4/xattr.c:ext4_xattr_set_entry() function. An attacker could exploit this by operating on a mounted crafted ext4 image.

Affected products

Canonical Ubuntu Linux: 14.04, 18.04
Linux kernel: all versions
Red Hat Enterprise Linux: 7.0

References

http://www.securityfocus.com/bid/104858
https://access.redhat.com/errata/RHSA-2019:0162
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10840
https://usn.ubuntu.com/3752-1/
https://usn.ubuntu.com/3752-2/
https://usn.ubuntu.com/3752-3/
http://www.securityfocus.com/bid/104858
https://access.redhat.com/errata/RHSA-2019:0162
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10840
https://usn.ubuntu.com/3752-1/
https://usn.ubuntu.com/3752-2/
https://usn.ubuntu.com/3752-3/

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