VulnerabilityModified
CVE-2023-40283
There is a use-after-free because the children of an sk are mishandled.
HIGH 7.8EPSS 0.55%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.55%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.55% probability · 44th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel · debian/debian linux · canonical/ubuntu linux
- Source
- cve@mitre.org
References
- http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.htmlThird Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.htmlThird Party Advisory, VDB 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=1728137b33c00d5a2b5110ed7aafb42e7c32e4a1Patch
- https://github.com/torvalds/linux/commit/1728137b33c00d5a2b5110ed7aafb42e7c32e4a1Patch
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.htmlIssue Tracking, Third 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-LSN-0098-1.htmlThird Party Advisory, VDB Entry
- http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.htmlThird Party Advisory, VDB 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=1728137b33c00d5a2b5110ed7aafb42e7c32e4a1Patch
- https://github.com/torvalds/linux/commit/1728137b33c00d5a2b5110ed7aafb42e7c32e4a1Patch
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.htmlIssue Tracking, Third 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.