Security context

What an agent needs to avoid regressing past fixes and find the next vuln in this repo.

containerd/stargz-snapshotter
main @ 4daea59
4
Fixes
0
CVEs
HIGH
Peak severity
Highlights
Auth Bypass: 4 prior fixes. Scrutinize any change in this area.
filesystems/stargz: most-fixed (2 issues). Treat as high-risk during review.
2 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns

The bug types that recur here, drawn from past fixes, not open vulnerabilities.

Auth Bypass: Failure to cryptographically verify stargz blob contents and TOC JSON metadata before mounting allows untrusted or modified container layers to be mounted, potentially executing malicious code.
Auth Bypass: Flaws in the bitwise shift logic of the FUSE Access implementation can swap owner and other permissions, leading to unauthorized file access across container boundaries.
Auth Bypass: Flawed boolean logic (OR instead of AND) in evaluation of image labels like TargetSkipVerifyLabel allows arbitrary image annotations to bypass content verification settings.