DEBIAN-CVE-2026-42327
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-42327
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-42327.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2026-42327
- Upstream
- Published
- 2026-05-14T21:16:45.430Z
- Modified
- 2026-05-15T14:00:09.131160365Z
- Severity
-
- 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
- Summary
- [none]
- Details
-
rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocspresponders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref<Target = str> wraps the raw bytes with str::fromutf8_unchecked. OpenSSL does not enforce that the underlying IA5String is ASCII, so a certificate with non-UTF-8 bytes in its OCSP accessLocation causes safe Rust code to construct a &str that violates the UTF-8 invariant — resulting in undefined behavior. This vulnerability is fixed in 0.10.79.
- References
Affected packages
Debian:11 / rust-openssl
Package
- Name
- rust-openssl
- Purl
- pkg:deb/debian/rust-openssl?arch=source&distro=bullseye
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Debian:12 / rust-openssl
Package
- Name
- rust-openssl
- Purl
- pkg:deb/debian/rust-openssl?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affected
Debian:13 / rust-openssl
Package
- Name
- rust-openssl
- Purl
- pkg:deb/debian/rust-openssl?arch=source&distro=trixie
Debian:14 / rust-openssl
Package
- Name
- rust-openssl
- Purl
- pkg:deb/debian/rust-openssl?arch=source&distro=forky