DEBIAN-CVE-2025-21764

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2025-21764
Published: 27 Feb 2025, 03:15
Last modified:28 Apr 2026, 20:29

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

27 Feb 2025, 03:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:29
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: ndisc: use RCU protection in ndisc_alloc_skb() ndisc_alloc_skb() can be called without RTNL or RCU being held. Add RCU protection to avoid possible UAF.

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•linux

    < 5.10.237-1 | < 6.1.129-1 | < 6.12.16-1 | < 6.12.16-1

  • debian•linux-6.1

    < 6.1.129-1~deb11u1

References (1)