CVE-2020-10751: kernel selinux
Vulnerability summary
CVE-2020-10751 is a medium (CVSS 6.1) vulnerability in kernel selinux. EPSS estimates a 0.35% chance of exploitation in the next 30 days, higher than 28.4% of scored vulnerabilities.
Not severe (CVSS 6.1, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 30 · Duplicates 1 · Related 22Timeline
- 26-05-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- OSV · DebianEcosystem advisory · calculated6.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
- NVDNIST6.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
EPSS trend
Probability
0.35%
Chance of exploitation in the next 30 days
Percentile
28%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.35% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-349Acceptance of Extraneous Untrusted Data With Trusted DataThe product, when processing trusted data, accepts any untrusted data that is also included with the trusted data, treating the untrusted data as if it were trusted.
- CWE-345Insufficient Verification of Data AuthenticityThe product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu40 products
- linuxAll versions (No fix recorded) | < 4.4.0-184.214 | < 4.15.0-106.107 | < 5.4.0-37.41
- linux-aws< 4.4.0-1073.77 | < 4.4.0-1109.120 | < 4.15.0-1073.77 | < 5.4.0-1015.15
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3< 5.3.0-1030.32~18.04.1
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
Debian1 product
- linux< 5.6.14-1
Kernel1 product
- selinux< 5.7
Redhat1 product
- enterprise_linux_server7.0 | 8.0
The linux foundation1 product
- kernel< 5.7
5 vendors · 44 products
References
28 linksShow all 28 references
- www.oracle.com/security-alerts/cpuApr2021.htmlX Refsource MISC
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10751X Refsource CONFIRMREPORTIssue TrackingPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2020/04/30/5X Refsource CONFIRMREPORTMailing ListThird Party Advisory
