CVE-2023-3772
Kernel: xfrm: null pointer dereference in xfrm_update_ae_params()
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium4.4 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.47% · top 59% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
Red Hat · Red Hat Enterprise Linux 8
- unaffected 0:4.18.0-513.5.1.rt7.307.el8_9 – < *
Red Hat · Red Hat Enterprise Linux 8
- unaffected 0:4.18.0-513.5.1.el8_9 – < *
Red Hat · Red Hat Enterprise Linux 8.6 Extended Update Support
- unaffected 0:4.18.0-372.87.1.el8_6 – < *
Red Hat · Red Hat Enterprise Linux 8.8 Extended Update Support
- unaffected 0:4.18.0-477.43.1.el8_8 – < *
Red Hat · Red Hat Enterprise Linux 9
- unaffected 0:5.14.0-362.8.1.el9_3 – < *
Red Hat · Red Hat Enterprise Linux 9
- unaffected 0:5.14.0-362.8.1.el9_3 – < *
Red Hat · Red Hat Virtualization 4 for Red Hat Enterprise Linux 8
- unaffected 0:4.18.0-372.87.1.el8_6 – < *
Red Hat · Red Hat Enterprise Linux 6
All versions: unknown
Red Hat · Red Hat Enterprise Linux 7
All versions: unknown
Red Hat · Red Hat Enterprise Linux 7
All versions: unknown
Red Hat · Red Hat Enterprise Linux 9
All versions: affected
References (14)
- RHSA-2023:6583 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:6901 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2023:7077 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2024:0412 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2024:0575 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://access.redhat.com/security/cve/CVE-2023-3772 (opens in a new tab)vdb-entryx_refsource_REDHATx_transferred
- RHBZ#2218943 (opens in a new tab)issue-trackingx_refsource_REDHATx_transferred
- http://www.openwall.com/lists/oss-security/2023/08/10/1 (opens in a new tab)x_transferred
- http://www.openwall.com/lists/oss-security/2023/08/10/3 (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html (opens in a new tab)x_transferred
- https://www.debian.org/security/2023/dsa-5492 (opens in a new tab)x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-3772)Record last updated .