CVE-2023-3772
MEDIUM severity · CVSS 5.5 · CWE-476
5.5CVSS MEDIUM
Summary
A flaw was found in the Linux kernel’s IP framework for transforming packets (XFRM subsystem). This issue may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in xfrm_update_ae_params(), leading to a possible kernel crash and denial of service.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (4)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://access.redhat.com/errata/RHSA-2023:6583Advisory
- https://access.redhat.com/errata/RHSA-2023:6901Advisory
- https://access.redhat.com/errata/RHSA-2023:7077Advisory
- https://access.redhat.com/errata/RHSA-2024:0412
- https://access.redhat.com/errata/RHSA-2024:0575
- https://access.redhat.com/security/cve/CVE-2023-3772Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2218943Advisory
- http://www.openwall.com/lists/oss-security/2023/08/10/1