VulnerabilityModified
CVE-2020-15703
There is no input validation on the Locale property in an apt transaction.
LOW 3.3EPSS 0.49%
Does this matter?
Lower severity and a low EPSS score (0.49%). Track it; it rarely justifies an emergency change on its own.
Description
There is no input validation on the Locale property in an apt transaction. An unprivileged user can supply a full path to a writable directory, which lets aptd read a file as root. Having a symlink in place results in an error message if the file exists, and no error otherwise. This way an unprivileged user can check for the existence of any files on the system as root.
- CVSS 3.1
- 3.3 LOWCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 0.49% probability · 41th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- aptdaemon project/aptdaemon
- Source
- security@ubuntu.com
References
- https://ubuntu.com/security/notices/USN-4537-1Patch, Third Party Advisory
- https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.htmlExploit, Third Party Advisory
- https://ubuntu.com/security/notices/USN-4537-1Patch, Third Party Advisory
- https://www.eyecontrol.nl/blog/the-story-of-3-cves-in-ubuntu-desktop.htmlExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.