High severity · published Oct 21, 2022
CVE-2022-3640
Linux Kernel Bluetooth l2cap_core.c l2cap_conn_del use after free
8.8
CVSS
1.2%
EPSS
No
On KEV
Description
A vulnerability, which was classified as critical, was found in Linux Kernel. Affected is the function l2cap_conn_del of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211944.
CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Adjacent
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
4.9.326 before 4.9.333; 4.14.291 before 4.14.299; 4.19.255 before 4.19.265; 5.4.209 before 5.4.224; 5.10.135 before 5.10.154; 5.15.59 before 5.15.79; +1 more · source: vendor, NVD
DL
Debian Linux · Debian
10.0 · source: NVD
FE
Fedora · Fedoraproject
35; 36; 37 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-3640
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-3640
Exploit
https://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git/commit/?id=42cf46dea905a80f6de218e837ba4d4cc33d6979
Mailing List
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
Mailing List
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DGOIRR72OAFE53XZRUDZDP7INGLIC3E3/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OD7VWUT7YAU4CJ247IF44NGVOAODAJGC/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG2UPX3MQ7RKRJEUMGEH2TLPKZJCBU5C/
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