CVE-2023-40283
HIGHCVSS 7.8/10EPSS 0.56%
Last modified
CVE-2023-40283 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.56% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 3.5, < 4.14.322 |
| Linux | Linux Kernel | >= 4.15, < 4.19.291 |
| Linux | Linux Kernel | >= 4.20, < 5.4.253 |
| Linux | Linux Kernel | >= 5.5, < 5.10.190 |
| Linux | Linux Kernel | >= 5.11, < 5.15.126 |
| Linux | Linux Kernel | >= 5.16, < 6.1.45 |
| Linux | Linux Kernel | >= 6.2, < 6.4.10 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
| Debian | Debian Linux | 12.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 20.04 |
| Canonical | Ubuntu Linux | 22.04 |
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://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://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
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-40283?
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 a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.56% probability of exploitation in the next 30 days.
How do I fix CVE-2023-40283?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2023-40283?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST