Linux Kernel BPF net/unix/af_unix.c unix_sock_destructor/unix_release_sock memory leak

CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
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4.1 | $0-$5k | 0.03 |
A vulnerability, which was classified as problematic, has been found in Linux Kernel (Operating System) (unknown version). This issue affects the function unix_sock_destructor/unix_release_sock
of the file net/unix/af_unix.c of the component BPF. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The software does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability.
The weakness was presented 10/17/2022. It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2022-3543. Technical details of the vulnerability are known, but there is no available exploit.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.
Product
Type
Vendor
Name
License
- open-source
CPE 2.3
CPE 2.2
CVSSv3
VulDB Meta Base Score: 4.2VulDB Meta Temp Score: 4.1
VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍
NVD Base Score: 5.5
NVD Vector: 🔒
CNA Base Score: 3.5
CNA Vector (VulDB): 🔒
CVSSv2
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Memory leakCWE: CWE-401 / CWE-404
ATT&CK: Unknown
Local: No
Remote: Partially
Availability: 🔒
Status: Not defined
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
0-Day | unlock | unlock | unlock | unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔒
Patch: git.kernel.org
Timeline
10/17/2022 Advisory disclosed10/17/2022 CVE reserved
10/17/2022 VulDB entry created
11/09/2022 VulDB last update
Sources
Vendor: kernel.orgAdvisory: git.kernel.org
Status: Confirmed
CVE: CVE-2022-3543 (🔒)
Entry
Created: 10/17/2022 01:20 PMUpdated: 11/09/2022 04:21 PM
Changes: 10/17/2022 01:20 PM (41), 11/09/2022 04:14 PM (2), 11/09/2022 04:21 PM (21)
Complete: 🔍
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