CVEvulnerability

CVE-2024-29069

7.3 HIGH Published 2024-07-25 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2024-07-25
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.8 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
CVSS 3.1 ([email protected])
7.3 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Weaknesses
CWE-59, CWE-610

Description

In snapd versions prior to 2.62, snapd failed to properly check the destination of symbolic links when extracting a snap. The snap format is a squashfs file-system image and so can contain symbolic links and other file types. Various file entries within the snap squashfs image (such as icons and desktop files etc) are directly read by snapd when it is extracted. An attacker who could convince a user to install a malicious snap which contained symbolic links at these paths could then cause snapd to write out the contents of the symbolic link destination into a world-readable directory. This in-turn could allow an unprivileged user to gain access to privileged information.

Affected configurations

• canonical snapd (< 2.62)

Related

Weakness · CWE (2)

  • CWE-59 Improper Link Resolution Before File Access weakness
  • CWE-610 Externally Controlled Reference to a Resource in Another Sphere weakness

References