Vulnerability Description
An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.
CVSS Score
7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.5, < 4.14.322 |
| Debian | Debian Linux | 10.0 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSThird Party AdvisoryVDB Entry
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.10Release Notes
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17Patch
- https://github.com/torvalds/linux/commit/1728137b33c00d5a2b5110ed7aafb42e7c32e4aPatch
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.htmlIssue TrackingThird Party Advisory
- https://security.netapp.com/advisory/ntap-20231020-0007/Third Party Advisory
- https://www.debian.org/security/2023/dsa-5480Third Party Advisory
- https://www.debian.org/security/2023/dsa-5492Third Party Advisory
- http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSThird Party AdvisoryVDB Entry
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSThird Party AdvisoryVDB Entry
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.10Release Notes
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17Patch
- https://github.com/torvalds/linux/commit/1728137b33c00d5a2b5110ed7aafb42e7c32e4aPatch
FAQ
What is CVE-2023-40283?
CVE-2023-40283 is a vulnerability with a CVSS score of 7.8 (HIGH). An issue was discovered in l2cap_sock_release in net/bluetooth/l2cap_sock.c in the Linux kernel before 6.4.10. There is a use-after-free because the children of an sk are mishandled.
How severe is CVE-2023-40283?
CVE-2023-40283 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-40283?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux, Canonical Ubuntu Linux.