Security context

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

microsoft/go-winio
main @ 7561016
2
Fixes
0
CVEs
HIGH
Peak severity
Highlights
Insecure Permissions: 1 prior fix. Scrutinize any change in this area.
pkg/security: most-fixed (1 issue). Treat as high-risk during review.
1 high-severity fix in this history; regressions here are high-impact.
Recurring patterns

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

Memory Corruption: Improper slice length calculations when converting SDDL strings to security descriptors can lead to out-of-bounds memory access. Developers must calculate buffer lengths using actual descriptor dimensions provided by the Windows API rather than static structure sizes when invoking unsafe Go operations.
Insecure Permissions: Overly permissive default DACLs assigned to system groups can allow unauthorized write permissions and introduce unintended capabilities. Access control utility functions must restrict permissions to the absolute minimum required, such as read-only access (GENERIC_READ), and omit unnecessary SIDs.