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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2023-53559 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ip_vti: fix potential slab-use-after-free in decode_session6 When ip_vti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-after-free may occur when ip_vti device sends IPv6 packets. As commit f855691975bb ("xfrm6: Fix the nexthdr offset in _decode_session6.") showed, xfrm_decode_session was originally intended only for the receive path. IP6CB(skb)->nhoff is not set during transmission. Therefore, set the cb field in the skb to 0 before sending packets.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0b4d69539fdea138af2befe08893850c89248068 kernel.org Patch 
https://git.kernel.org/stable/c/2b05bf5dc437f7891dd409a3eaf5058459391c7a kernel.org Patch 
https://git.kernel.org/stable/c/6018a266279b1a75143c7c0804dd08a5fc4c3e0b kernel.org Patch 
https://git.kernel.org/stable/c/78e397a43e1c47321a4679cc49a6c4530bf820b9 kernel.org Patch 
https://git.kernel.org/stable/c/7dfe23659f3677c08a60a0056cda2d91a79c15ca kernel.org Patch 
https://git.kernel.org/stable/c/82fb41c5de243e7dfa90f32ca58e35adaff56c1d kernel.org Patch 
https://git.kernel.org/stable/c/d34c30442d5e53a33cde79ca163320dbe2432cbd kernel.org Patch 
https://git.kernel.org/stable/c/e1e04cc2ef2c0c0866c19f5627149a76c2baae32 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2023-53559
NVD Published Date:
10/04/2025
NVD Last Modified:
03/20/2026
Source:
kernel.org