CVE-2022-47952
CVE-2022-47952
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
lxc-user-nic in lxc through 5.0.1 is installed setuid root, and may allow local users to infer whether any file exists, even within a protected directory tree, because "Failed to open" often indicates that a file does not exist, whereas "does not refer to a network namespace path" often indicates that a file exists. NOTE: this is different from CVE-2018-6556 because the CVE-2018-6556 fix design was based on the premise that "we will report back to the user that the open() failed but the user has no way of knowing why it failed"; however, in many realistic cases, there are no plausible reasons for failing except that the file does not exist.
CVSS 3.3 · Faible · EPSS 0,7% · Correctif disponible
- Publication
- Mise à jour
Pile logicielle: system
Produits et versions concernés
n/a
- Versions du logiciel
- n/a: Concernée
Aucun correctif publié
lxc Debian:12
- Plages de versions concernées
- ECOSYSTEM: < 1:5.0.2-1
Mettez à jour vers 1:5.0.2-1
lxc Debian:13
- Plages de versions concernées
- ECOSYSTEM: < 1:5.0.2-1
Mettez à jour vers 1:5.0.2-1
lxc Debian:14
- Plages de versions concernées
- ECOSYSTEM: < 1:5.0.2-1
Mettez à jour vers 1:5.0.2-1
lxc Ubuntu:Pro:18.04:LTS
- Versions du logiciel
- 2.1.0-0ubuntu1
- 2.1.1-0ubuntu1
- 3.0.0~beta1-0ubuntu3
- 3.0.0~beta2-0ubuntu2
- 3.0.0~beta3-0ubuntu1
- 3.0.0~beta4-0ubuntu1
- 3.0.0-0ubuntu1
- 3.0.0-0ubuntu2
- 3.0.1-0ubuntu1~18.04.1
- 3.0.1-0ubuntu1~18.04.2
- 3.0.2-0ubuntu1~18.04.1
- 3.0.3-0ubuntu1~18.04.1
- 3.0.3-0ubuntu1~18.04.3
- Plages de versions concernées
- ECOSYSTEM: < 3.0.3-0ubuntu1~18.04.3+esm1
Mettez à jour vers 3.0.3-0ubuntu1~18.04.3+esm1
lxc Ubuntu:Pro:20.04:LTS
- Versions du logiciel
- 3.0.4-0ubuntu1
- 3.0.4-0ubuntu2
- 1:4.0.0-0ubuntu2
- 1:4.0.1-0ubuntu1
- 1:4.0.1-0ubuntu2
- 1:4.0.2-0ubuntu1
- 1:4.0.6-0ubuntu1~20.04.1
- 1:4.0.12-0ubuntu1~20.04.1
- Plages de versions concernées
- ECOSYSTEM: < 1:4.0.12-0ubuntu1~20.04.1+esm1
Mettez à jour vers 1:4.0.12-0ubuntu1~20.04.1+esm1
lxc Ubuntu:Pro:22.04:LTS
- Versions du logiciel
- 1:4.0.10-0ubuntu5
- 1:4.0.12-0ubuntu1
- 1:4.0.12-0ubuntu2
- 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1
- 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1
- Plages de versions concernées
- ECOSYSTEM: < 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1+esm1
Mettez à jour vers 1:5.0.0~git2209-g5a7b9ce67-0ubuntu1.1+esm1
lxc Ubuntu:Pro:24.04:LTS
- Versions du logiciel
- 1:5.0.1-0ubuntu7
- 1:5.0.1-0ubuntu8
- 1:5.0.3-2ubuntu5
- 1:5.0.3-2ubuntu7
- 1:5.0.3-2ubuntu7.1
- 1:5.0.3-2ubuntu7.2
- 1:5.0.3-2ubuntu7.3
- Plages de versions concernées
- ECOSYSTEM: < 1:5.0.3-2ubuntu7.3+esm1
Mettez à jour vers 1:5.0.3-2ubuntu7.3+esm1
Sources originales
- https://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/lxc.spec.in#L274
- https://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/src/lxc/cmd/lxc_user_nic.c#L1085-L1104
- https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591/comments/45
- https://github.com/MaherAzzouzi/CVE-2022-47952
- https://lists.debian.org/debian-lts-announce/2023/08/msg00025.html
- https://nvd.nist.gov/vuln/detail/CVE-2022-47952