5.6
Moyenne
CVE-2020-8833 Time-of-check Time-of-use Race Condition vulnerability on crash report ownership change in Apport allows for a…
Description
Time-of-check Time-of-use Race Condition vulnerability on crash report ownership change in Apport allows for a possible privilege escalation opportunity. If fs.protected_symlinks is disabled, this can be exploited between the os.open and os.chown calls when the Apport cron script clears out crash files of size 0. A symlink with the same name as the deleted file can then be created upon which chown will be called, changing the file owner to root. Fixed in versions 2.20.1-0ubuntu2.23, 2.20.9-0ubuntu7.14, 2.20.11-0ubuntu8.8 and 2.20.11-0ubuntu22.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| apport 2.20 | 2.20.1 → < 2.20.11-0ubuntu8.8 | 2.20.1-0ubuntu2.23 |
Références
- usn.ubuntu.com usn.ubuntu.com
- bugs.launchpad.net bugs.launchpad.net
- USN-4315-2 usn.ubuntu.com
Chronologie
- Publiée
- Dernière modification
Autres CVE de apport
Les 29 CVE de apport →
CVE-2026-77113
Path traversal in apport-unpack in Canonical Apport before 2.36.0, 2.34.2, and 2.28.4 on Linux allows an attacker to…
6.7
Moyenne
CVE-2025-5467
It was discovered that process_crash() in data/apport in Canonical's Apport crash reporting tool may create crash…
1.9
Faible
CVE-2025-5054
Race condition in Canonical apport up to and including 2.32.0 allows a local attacker to leak sensitive information…
4.7
Moyenne
CVE-2022-28657
Apport does not disable python crash handler before entering chroot
7.8
Élevée