High severity · published Jul 11, 2023
CVE-2023-3269
A vulnerability exists in the memory management subsystem of the Linux kernel
7.8
CVSS
1.3%
EPSS
No
On KEV
Description
A vulnerability exists in the memory management subsystem of the Linux kernel. The lock handling for accessing and updating virtual memory areas (VMAs) is incorrect, leading to use-after-free problems. This issue can be successfully exploited to execute arbitrary kernel code, escalate containers, and gain root privileges.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 70% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
6.1 before 6.1.37; 6.2 before 6.3.11; 6.4; 6.4; 6.4; 6.4; +4 more · source: NVD
EL
Enterprise Linux · Redhat
6.0; 7.0; 8.0; 9.0 · source: NVD
FE
Fedora · Fedoraproject
37; 38 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-3269
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-3269
Mailing List
http://seclists.org/fulldisclosure/2023/Jul/43
Mailing List
http://www.openwall.com/lists/oss-security/2023/07/28/1
Mailing List
http://www.openwall.com/lists/oss-security/2023/08/25/1
Mailing List
http://www.openwall.com/lists/oss-security/2023/08/25/4
Third Party Advisory
https://access.redhat.com/security/cve/CVE-2023-3269
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2215268
More from Kernel
9.8
CVE-2025-39682
tls: fix handling of zero-length records on the rx_list
8.8
CVE-2026-53266
netfilter: bridge: make ebt_snat ARP rewrite writable
8.8
CVE-2013-6282
Linux Kernel Improper Input Validation Vulnerability
8.4
CVE-2022-0185
Linux Kernel Heap-Based Buffer Overflow Vulnerability
8.4
CVE-2013-2094
Linux Kernel Privilege Escalation Vulnerability