CVE-2020-27348
In some conditions, a snap package built by snapcraft includes the current directory in LD_LIBRARY_PATH, allowing a malicious snap to gain code execution within the context of another snap if both plug the home interface or similar.
Does this matter?
Lower severity and a low EPSS score (0.70%). Track it; it rarely justifies an emergency change on its own.
Description
In some conditions, a snap package built by snapcraft includes the current directory in LD_LIBRARY_PATH, allowing a malicious snap to gain code execution within the context of another snap if both plug the home interface or similar. This issue affects snapcraft versions prior to 4.4.4, prior to 2.43.1+16.04.1, and prior to 2.43.1+18.04.1.
- CVSS 3.1
- 6.8 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
- EPSS
- 0.70% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-427
- Affected
- canonical/snapcraft · canonical/ubuntu linux
- Source
- security@ubuntu.com
References
- https://bugs.launchpad.net/bugs/1901572Exploit, Issue Tracking, Third Party Advisory
- https://github.com/snapcore/snapcraft/pull/3345Third Party Advisory
- https://usn.ubuntu.com/usn/usn-4661-1Patch, Third Party Advisory
- https://bugs.launchpad.net/bugs/1901572Exploit, Issue Tracking, Third Party Advisory
- https://github.com/snapcore/snapcraft/pull/3345Third Party Advisory
- https://usn.ubuntu.com/usn/usn-4661-1Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.