Security context

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

square/wire

              master @ d7afcda
            

Fixes

CVEs

CRITICAL

Peak severity

33.3%

Coverage

Highlights

Buffer Overflow: 1 prior fix. Scrutinize any change in this area.

.github/workflows/build.yml: most-fixed (1 issue). 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.

Remote Code Execution: The Gradle wrapper distributionUrl was vulnerable to Log4Shell (CVE-2021-44228) via the build classpath, allowing arbitrary code execution during builds. This is the highest-severity historical fix and indicates the build pipeline is a prime attack surface for dependency-supply-chain attacks.

Buffer Overflow: A missing bounds check before incrementing the message stack index allowed memory corruption in the Swift protobuf writer. This is a direct memory-safety bug in runtime serialization code, which can lead to crashes or potentially exploitable memory corruption.

Privilege Escalation: The GITHUB_TOKEN had default (write) permissions in CI workflows, which could be exfiltrated to escalate privileges or tamper with releases. Restricting to read-only reduces the blast radius of a compromised workflow.