CVE-2023-53159
lowpriority · track · 13EPSS 0.002 · 11 %ileEUUSEPSS · scored 2026-10-27
The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.1–4.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- GHSA-xcf7-rvmh-g6q4`openssl` `X509VerifyParamRef::set_host` buffer over-read2023-06-21ghsa · osvUS
When this function was passed an empty string, `openssl` would attempt to call `strlen` on it, reading arbitrary memory until it reached a NUL byte.
- RUSTSEC-2023-0044`openssl` `X509VerifyParamRef::set_host` buffer over-read2023-06-20vendor · osvUS
When this function was passed an empty string, `openssl` would attempt to call `strlen` on it, reading arbitrary memory until it reached a NUL byte.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (12)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2023-53159cnnvd
- https://crates.io/crates/opensslcnnvd
- https://github.com/sfackler/rust-openssl/issues/1965cnnvd
- https://github.com/sfackler/rust-openssl/releasesPatchcnnvd
- https://rustsec.org/advisories/RUSTSEC-2023-0044.htmlcnnvd
- https://vigilance.fr/vulnerability/Rust-openssl-out-of-bounds-memory-reading-via-X509VerifyParamRef-set-host-48876cnnvd
- https://crates.io/crates/opensslenisa_euvd
- https://github.com/sfackler/rust-openssl/issues/1965enisa_euvd
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