Linux Kernel libbpf tools/lib/bpf/btf_dump.c btf_dump_name_dups use after free

CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.3 | $0-$5k | 0.06 |
A vulnerability classified as critical has been found in Linux Kernel (Operating System) (the affected version unknown). Affected is the function btf_dump_name_dups
of the file tools/lib/bpf/btf_dump.c of the component libbpf. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was disclosed 10/17/2022. The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2022-3534. There are known technical details, but no exploit is available.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.
Product
Type
Vendor
Name
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.3VulDB Meta Temp Score: 6.3
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 8.0
NVD Vector: 🔍
CNA Base Score: 5.5
CNA Vector (VulDB): 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Use after freeCWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: git.kernel.org
Timeline
10/17/2022 🔍10/17/2022 🔍
10/17/2022 🔍
11/09/2022 🔍
Sources
Vendor: kernel.orgAdvisory: git.kernel.org
Status: Confirmed
CVE: CVE-2022-3534 (🔍)
Entry
Created: 10/17/2022 08:11 AMUpdated: 11/09/2022 03:00 PM
Changes: 10/17/2022 08:11 AM (41), 11/09/2022 02:58 PM (2), 11/09/2022 03:00 PM (21)
Complete: 🔍
Cache ID: 18:809:40
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