cve-2022-47952
Vulnerability from cvelistv5
Published
2023-01-01 00:00
Modified
2025-04-10 19:16
Severity ?
3.3 (Low) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
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.
References
cve@mitre.orghttps://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591/comments/45Issue Tracking, Vendor Advisory
cve@mitre.orghttps://github.com/MaherAzzouzi/CVE-2022-47952Third Party Advisory
cve@mitre.orghttps://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/lxc.spec.in#L274Third Party Advisory
cve@mitre.orghttps://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/src/lxc/cmd/lxc_user_nic.c#L1085-L1104Third Party Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2023/08/msg00025.html
af854a3a-2127-422b-91ae-364da2661108https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1783591/comments/45Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/MaherAzzouzi/CVE-2022-47952Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/lxc.spec.in#L274Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/lxc/lxc/blob/0b83d71c2c8f3bac9503f894cd84584f79258bb3/src/lxc/cmd/lxc_user_nic.c#L1085-L1104Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/08/msg00025.html
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

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