What’s Vulnerable › Vulnerabilities

CVE-2023-51779

• Severity: high (CVSS 7.0 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-02-29 · updated 2026-06-17
• Weakness: CWE-416

Description

bt_sock_recvmsg in net/bluetooth/af_bluetooth.c in the Linux kernel through 6.6.8 has a use-after-free because of a bt_sock_ioctl race condition.

Affected products

• Linux Kernel: before 6.6.8 — fixed in 6.6.8

How to fix

Upgrade to a fixed version: Linux Kernel 6.6.8. Check the vendor advisory for mitigations.

References

• https://github.com/torvalds/linux/commit/2e07e8348ea454615e268222ae3fc240421be768
• https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html
• https://github.com/torvalds/linux/commit/2e07e8348ea454615e268222ae3fc240421be768
• https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html

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