What’s Vulnerable › Vulnerabilities

CVE-2020-10942

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2020-03-24 · updated 2026-06-17
• Weakness: CWE-787

Description

In the Linux kernel before 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls.

Affected products

• Canonical Ubuntu Linux: 14.04, 16.04, 18.04, 19.10
• Debian Linux: 8.0, 9.0, 10.0
• Linux kernel: before 5.5.8 — fixed in 5.5.8
• openSUSE Leap: 15.1

How to fix

Upgrade to a fixed version: Linux kernel 5.5.8. Check the vendor advisory for mitigations.

References

• http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html
• http://www.openwall.com/lists/oss-security/2020/04/15/4
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.8
• https://git.kernel.org/linus/42d84c8490f9f0931786f1623191fcab397c3d64
• https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
• https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
• https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
• https://lkml.org/lkml/2020/2/15/125
• https://security.netapp.com/advisory/ntap-20200403-0003/
• https://usn.ubuntu.com/4342-1/
• https://usn.ubuntu.com/4344-1/
• https://usn.ubuntu.com/4345-1/

Get alerted when CVE-2020-10942 or the next vulnerability affects your stack