CVE-2022-3534
Published: 17 October 2022
A vulnerability classified as critical has been found in Linux Kernel. Affected is the function btf_dump_name_dups of the file tools/lib/bpf/btf_dump.c of the component libbpf. 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-211032.
Notes
| Author | Note |
|---|---|
| mdeslaur | introduced by: https://github.com/libbpf/libbpf/commit/7ac1547f32f060d84b06c74edbb2c6896cc07949 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
dwarves-dfsg Launchpad, Ubuntu, Debian |
bionic |
Released
(1.21-0ubuntu1~18.04.1+esm1)
Available with Ubuntu Pro |
| focal |
Released
(1.21-0ubuntu1~20.04.1)
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
|
|
libbpf Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Released
(0.5.0-1~ubuntu20.04.1+esm1)
Available with Ubuntu Pro |
|
| jammy |
Released
(0.5.0-1ubuntu22.04.1)
|
|
| kinetic |
Released
(0.8.0-1ubuntu22.10.1)
|
|
| lunar |
Released
(1.0.1-2ubuntu1)
|
|
| mantic |
Released
(1.0.1-2ubuntu1)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Ignored
(end of standard support)
|
|
|
Patches: upstream: https://github.com/libbpf/libbpf/commit/54caf920db0e489de90f3aaaa41e2a51ddbcd084 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.0 |
| Attack vector | Adjacent |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |