CVE-2020-27348

snapcraft may build snaps with incorrect LD_LIBRARY_PATH

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.

Affected

Canonical · snapcraft

CVSS v3.1 NVD

6.8 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L

CVSS v2.0 NVD

4.4 MEDIUMAV:L/AC:M/Au:N/C:P/I:P/A:P

EPSS

0.70% chance of exploitation in the next 30 days, 52nd percentile

Published

2020-12-04

Updated

2024-09-16

Proof-of-concept exploits (1)

• https://bugs.launchpad.net/bugs/1901572

Security advisories

• snapcore/snapcraft/pull/3345
• https://usn.ubuntu.com/usn/usn-4661-1
• advisories/GHSA-qxm5-vx5j-pp6w

References

• CVE Record
• NVD entry