Improper Input Validation Affecting clamav1.5-lib-debuginfo package, versions <0:1.5.2-1.amzn2023.0.2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.21% (12th percentile)

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  • Snyk IDSNYK-AMZN2023-CLAMAV15LIBDEBUGINFO-17415113
  • published23 Jun 2026
  • disclosed14 May 2026

Introduced: 14 May 2026

CVE-2026-42327  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 clamav1.5-lib-debuginfo to version 0:1.5.2-1.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2026-1870.

NVD Description

Note: Versions mentioned in the description apply only to the upstream clamav1.5-lib-debuginfo package and not the clamav1.5-lib-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocsp_responders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref<Target = str> wraps the raw bytes with str::from_utf8_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.

CVSS Base Scores

version 3.1