Home/CVE/In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untru
CVE

CVE-2021-38160

In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untru

In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf-len value exceeding the buffer size. NOTE: the vendor indicates that the cited data corruption is not a vulnerability in any existing use case.

the length validation was added solely for robustness in the face of anomalous host OS behavior.

HIGH · CVSS 7.8 EPSS 0.0004
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
▤

Affected Products & Versions

14
linux kernel>= 2.6.24 and < 4.4.276
linux kernel>= 4.5 and < 4.9.276
linux kernel>= 4.10 and < 4.14.240
linux kernel>= 4.15 and < 4.19.198
linux kernel>= 4.20 and < 5.4.134
linux kernel>= 5.5 and < 5.10.52
linux kernel>= 5.11 and < 5.12.19
linux kernel>= 5.13 and < 5.13.4
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD07 Aug 2021 · 04:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

30
suse-csafSUSE-SU-2025:0229-1
usnUSN-5343-1
suse-csafSUSE-SU-2021:3972-1
suse-csafSUSE-SU-2021:3969-1
suse-csafSUSE-SU-2021:3929-1
🔗

References & Sources

7
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://access.redhat.com/security/cve/cve-2021-38160Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4Release NotesVendor Advisory
https://github.com/torvalds/linux/commit/d00d8da5869a2608e97cfede094dfc5e11462a46PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00010.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlMailing ListThird Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0010/Third Party Advisory
Intelligence Graph · click any node to traverse
CVETechnique ActorTool Family
drag to reposition · click any node to traverse · button top-right enlarges
External lookups - second-class, for what we don’t hold ourselves
NVDCVE.orgCISAVulnersExploit-DBGitHub PoCVulnCheck KEVGreyNoise
Vulnerabilities
CISA KEV catalog
CWE weaknesses
CAPEC attack patterns
Package vulnerabilities
Threat intelligence
Threat actors
Tools & malware
ATT&CK techniques
IOCs
Detection & defense
Sigma rules
YARA rules
Atomic Red Team tests
D3FEND countermeasures
Compliance
NIST 800-53
ISO 27001:2022
SOC 2 TSC
PCI-DSS v4.0
CIS Controls v8.1
About
All capabilities
Live statistics
Data sources
Privacy policy
Terms of service
threatengine.sh  ·  Open-source threat intelligence platform  ·  100+ authoritative sources  ·  Every fact traces to its origin