Out-of-Bounds Read Vulnerability in OpenSSL Crate for Rust by RustLang
CVE-2023-53159

9.1CRITICAL

Key Information:

Vendor

Sfackler

Status
OpenSSL
Vendor
CVE Published:
28 July 2025

What is CVE-2023-53159?

The OpenSSL crate prior to version 0.10.55 contains a vulnerability that enables an out-of-bounds read when an empty string is passed to the X509VerifyParamRef::set_host function. This flaw poses potential security risks by allowing unintended data access, highlighting the importance of updating to secure versions to mitigate possible exploitation.

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Deploy the Patch

Affected Version(s)

openssl 0 < 0.10.55

References

https://rustsec.org/advisories/RUSTSEC-2023-0044.html
https://github.com/sfackler/rust-openssl/issues/1965
https://crates.io/crates/openssl

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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