CVE-2020-10751

MEDIUM

Linux kernel <5.7 - Privilege Escalation

Title source: llm

Description

A flaw was found in the Linux kernels SELinux LSM hook implementation before version 5.7, where it incorrectly assumed that an skb would only contain a single netlink message. The hook would incorrectly only validate the first netlink message in the skb and allow or deny the rest of the messages within the skb with the granted permission without further processing.

References (18)

Core 18

Core References

Mailing List x_refsource_confirm

https://lore.kernel.org/selinux/CACT4Y+b8HiV6KFuAPysZD=5hmyO4QisgxCKi4DHU3CfMPSP=yg%40mail.gmail.com/

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

http://www.openwall.com/lists/oss-security/2020/05/27/3

Mailing List mailing-list x_refsource_mlist

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

Mailing List mailing-list x_refsource_mlist

https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html

Mailing List mailing-list x_refsource_mlist

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

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html

Vendor Advisory vendor-advisory x_refsource_ubuntu

https://usn.ubuntu.com/4389-1/

Vendor Advisory vendor-advisory x_refsource_ubuntu

https://usn.ubuntu.com/4390-1/

Vendor Advisory vendor-advisory x_refsource_ubuntu

https://usn.ubuntu.com/4391-1/

Mailing List vendor-advisory x_refsource_suse

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html

Vendor Advisory vendor-advisory x_refsource_ubuntu

https://usn.ubuntu.com/4413-1/

Vendor Advisory vendor-advisory x_refsource_ubuntu

https://usn.ubuntu.com/4412-1/

Vendor Advisory x_refsource_misc

https://www.oracle.com/security-alerts/cpuApr2021.html

Issue Tracking, Patch, Third Party Advisory x_refsource_confirm

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10751

Patch, Vendor Advisory x_refsource_confirm

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fb73974172ffaaf57a7c42f35424d9aece1a5af6

Mailing List, Third Party Advisory x_refsource_confirm

https://www.openwall.com/lists/oss-security/2020/04/30/5

Third Party Advisory vendor-advisory x_refsource_debian

https://www.debian.org/security/2020/dsa-4698

Third Party Advisory vendor-advisory x_refsource_debian

https://www.debian.org/security/2020/dsa-4699

Scores

CVSS v3 6.1

EPSS 0.0008

EPSS Percentile 24.2%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N

Details

CWE

CWE-349 CWE-345

Status published

Products (3)

kernel/selinux < 5.7

redhat/enterprise_linux_server 7.0

redhat/enterprise_linux_server 8.0

Published May 26, 2020

Tracked Since Feb 18, 2026