Out-of-bounds read in rust-openssl - CVE-2023-53159
Published: November 27, 2025
Vulnerability identifier: #VU118806
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-53159
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Steven Fackler
Affected software:
rust-openssl
rust-openssl
Detailed vulnerability description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the X509VerifyParamRef::set_host() function. A remote attacker can send specially crafted data to the application, trigger an out-of-bounds read error and read contents of memory on the system.
How to mitigate CVE-2023-53159
Install updates from vendor's website.