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High severity · published Aug 14, 2023
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
7.8
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
3.5 before 4.14.322; 4.15 before 4.19.291; 4.20 before 5.4.253; 5.5 before 5.10.190; 5.11 before 5.15.126; 5.16 before 6.1.45; +1 more · source: NVD
DL
Debian Linux · Debian
10.0; 11.0; 12.0 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 18.04; 20.04; 22.04 · source: NVD
SS
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5; V3.1.0 before V3.1.5 · source: CISA
SS
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP · Siemens
V3.1.0 before V3.1.5 · source: CISA
Affected product
KE
Kernel
Linux
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-40283
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-40283
Third Party Advisory
http://packetstormsecurity.com/files/175072/Kernel-Live-Patch-Security-Notice-LSN-0098-1.html
Third Party Advisory
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html
Release Notes
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.4.10
Patch
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1728137b33c00d5a2b5110ed7aafb42e7c32e4a1
Patch
https://github.com/torvalds/linux/commit/1728137b33c00d5a2b5110ed7aafb42e7c32e4a1
Mailing List
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
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