linux: In pppol2tp_create of l2tp_ppp.c, there is a possible use after free due to a race condition
CVE-2022-20567 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-20567, released December 16, 2022. It is not reported as exploited. Patch Radar priority: Routine.
In pppol2tp_create of l2tp_ppp.c, there is a possible use after free due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-186777253References: Upstream kernel
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 4.15.11-1 | DEBIAN-CVE-2022-20567 | Dec 16, 2022 |
| linux · Debian 13.5 (trixie) | 4.15.11-1 | DEBIAN-CVE-2022-20567 | Dec 16, 2022 |
| linux · Debian 14 | 4.15.11-1 | DEBIAN-CVE-2022-20567 | Dec 16, 2022 |
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