CVE-2020-10942: canonical ubuntu_linux Out-of-bounds Write
Vulnerability summary
CVE-2020-10942 is a medium (CVSS 5.4) Out-of-bounds Write vulnerability in canonical ubuntu_linux. EPSS estimates a 1.00% chance of exploitation in the next 30 days, higher than 62.8% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 5.3, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 26 · Related 18Timeline
- 24-03-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
- NVDNIST5.3MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
EPSS trend
Probability
1.00%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.00% 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
1 foundExploit Reference (lkml.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu36 products
- linuxAll versions (No fix recorded) | < 4.4.0-179.209 | < 4.15.0-99.100
- linux-aws< 4.4.0-1067.71 | < 4.4.0-1107.118 | < 4.15.0-1066.70
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3< 5.3.0-1017.18~18.04.1
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
Debian2 products
- linux< 5.5.13-1
- debian_linuxEOL8.0 | 9.0 | 10.0
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 19.10
Linux1 product
- linux_kernel< 5.5.8
Opensuse1 product
- leapEOL15.1
5 vendors · 41 products
References
23 links- git.kernel.org/linus/42d84c8490f9f0931786f1623191fcab397c3d64X Refsource MISCREPORTPatchThird Party Advisory
- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.8X Refsource MISCREPORTRelease NotesVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
Show all 23 references
- lists.debian.org/debian-lts-announce/2020/06/msg00011.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/06/msg00012.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/06/msg00013.htmlMailing ListX Refsource MLISTThird Party Advisory
