snapcore/snapcraft · Security
snapcraft Access Restriction Bypass
- GHSA ID
- GHSA-qxm5-vx5j-pp6w
- CVE ID
- CVE-2020-27348
- Severity
- medium
- Published
- Updated
- CVSS
- 6.8 · CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
- CVSS v3
- 6.8 · CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
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.
CWEs
- CWE-427 · Uncontrolled Search Path Element
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-27348 ↗
- https://github.com/snapcore/snapcraft/pull/3345 ↗
- https://bugs.launchpad.net/bugs/1901572 ↗
- https://usn.ubuntu.com/usn/usn-4661-1 ↗
- https://github.com/snapcore/snapcraft/commit/a0ceca9d531a34c979251030ed67b5fa2abfdd9a ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/snapcraft/PYSEC-2020-109.yaml ↗
- https://github.com/advisories/GHSA-qxm5-vx5j-pp6w ↗