CVE-2023-51781 — Use After Free in Kernel

CWE-416 — Use After Free49 documents10 sources
Severity
7.0HIGHNVD
OSV6.8OSV6.4OSV5.5OSV4.9
EPSS
0.0%
top 96.50%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
8
Linux KernelDebian LinuxDebian Linux+5 more
Timeline
PublishedJan 11
Latest updateAug 14

Description

An issue was discovered in the Linux kernel before 6.6.8. atalk_ioctl in net/appletalk/ddp.c has a use-after-free because of an atalk_recvmsg race condition.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.0 | Impact: 5.9

Affected Packages9 packages

▶NVDlinux/linux_kernel< 6.6.8+2
▶Debianlinux/linux_kernel< 5.10.205-2+3
▶Ubuntulinux/linux_kernel< 5.4.0-172.190+10
▶debiandebian/linux< linux 6.1.69-1 (bookworm)

Also affects: Debian Linux 10.0

Patches

Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

22
OSV
Kernel Live Patch Security Notice↗2024-06-10
▶
OSV
Kernel Live Patch Security Notice↗2024-04-30
▶
OSV
linux-azure vulnerabilities↗2024-04-09
▶
OSV
Kernel Live Patch Security Notice↗2024-04-03
▶
OSV
linux-aws-hwe, linux-azure, linux-azure-4.15, linux-oracle vulnerabilities↗2024-03-25
▶

📋Vendor Advisories

25
CISA ICS
Siemens SINEC OS↗2025-08-14
▶
Ubuntu
Kernel Live Patch Security Notice↗2024-06-10
▶
Ubuntu
Kernel Live Patch Security Notice↗2024-04-30
▶
Ubuntu
Linux kernel (Azure) vulnerabilities↗2024-04-09
▶
Ubuntu
Kernel Live Patch Security Notice↗2024-04-03
▶

💬Community

1
Bugzilla
CVE-2023-51781 kernel: use-after-free in net/appletalk/ddp.c↗2024-01-10
▶
CVE-2023-51781 — Use After Free in Linux Kernel | cvebase