What’s Vulnerable › Vulnerabilities

CVE-2018-10881

• Severity: medium (CVSS 5.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-07-26 · updated 2026-06-17
• Weakness: CWE-787

Description

A flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bound access in ext4_get_group_info function, a denial of service, and a system crash by mounting and operating on a crafted ext4 filesystem image.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04
• Debian Linux: 8.0
• Linux kernel: before 4.17.6 — fixed in 4.17.6
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux For Real Time: 7.0
• RedHat Enterprise Linux For Real Time For Nfv: 7
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Workstation: 7.0

How to fix

Upgrade to a fixed version: Linux kernel 4.17.6. Check the vendor advisory for mitigations.

References

• http://patchwork.ozlabs.org/patch/929792/
• http://www.securityfocus.com/bid/104901
• https://access.redhat.com/errata/RHSA-2018:2948
• https://access.redhat.com/errata/RHSA-2018:3083
• https://access.redhat.com/errata/RHSA-2018:3096
• https://bugzilla.kernel.org/show_bug.cgi?id=200015
• https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10881
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6e8ab72a812396996035a37e5ca4b3b99b5d214b
• https://lists.debian.org/debian-lts-announce/2018/07/msg00020.html
• https://usn.ubuntu.com/3752-1/
• https://usn.ubuntu.com/3752-2/
• https://usn.ubuntu.com/3752-3/

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