Vulnerability Details : CVE-2024-29069
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.
Products affected by CVE-2024-29069
- cpe:2.3:a:canonical:snapd:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2024-29069
0.03%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 5 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2024-29069
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.8
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L |
N/A
|
N/A
|
Canonical Ltd. | 2024-07-25 |
|
7.3
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
1.3
|
5.9
|
NIST | 2024-08-26 |
|
4.8
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L |
1.3
|
3.4
|
Canonical Ltd. | 2024-07-25 |
CWE ids for CVE-2024-29069
-
The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.Assigned by: nvd@nist.gov (Primary)
-
The product uses an externally controlled name or reference that resolves to a resource that is outside of the intended control sphere.Assigned by:
- cc1ad9ee-3454-478d-9317-d3e869d708bc (Primary)
- security@ubuntu.com (Secondary)
References for CVE-2024-29069
-
https://github.com/snapcore/snapd/pull/13682
many: container validation improvements by ZeyadYasser · Pull Request #13682 · snapcore/snapd · GitHubIssue Tracking;Patch
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