CVE-2023-53159
The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.
CVE-2023-53159 is fixed in 2 products on 1 platform, first by librust-openssl-dev 0.10.23-1ubuntu0.1~esm1, released July 27, 2025. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
4.5
Medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0023
13th percentile
The openssl crate before 0.10.55 for Rust allows an out-of-bounds read via an empty string to X509VerifyParamRef::set_host.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| librust-openssl-dev · Ubuntu 20.04 LTS (focal) | 0.10.23-1ubuntu0.1~esm1 | librust-openssl-dev 0.10.23-1ubuntu0.1~esm1 | Jul 27, 2025 |
| librust-openssl-dev · Ubuntu 22.04.1 LTS (jammy) | 0.10.36-1ubuntu0.1~esm1 | librust-openssl-dev 0.10.36-1ubuntu0.1~esm1 | Jul 27, 2025 |
| rust-openssl · Debian 13.5 (trixie) | 0.10.57-1 | DEBIAN-CVE-2023-53159 | Jul 28, 2025 |
| rust-openssl · Debian 14 | 0.10.57-1 | DEBIAN-CVE-2023-53159 | Jul 28, 2025 |
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