Amazon Linux 2 Security Advisory: ALAS2NITRO-ENCLAVES-2026-115
Advisory Released Date: 2026-08-04
Advisory Updated Date: 2026-08-04
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. (CVE-2026-42327)
Affected Packages:
aws-nitro-enclaves-cli
Note:
This advisory is applicable to Amazon Linux 2 - Nitro-enclaves Extra. Visit this page to learn more about Amazon Linux 2 (AL2) Extras and this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update aws-nitro-enclaves-cli or yum update --advisory ALAS2NITRO-ENCLAVES-2026-115 to update your system.
aarch64:
aws-nitro-enclaves-cli-1.4.5-0.amzn2.aarch64
aws-nitro-enclaves-cli-integration-tests-1.4.5-0.amzn2.aarch64
aws-nitro-enclaves-cli-devel-1.4.5-0.amzn2.aarch64
aws-nitro-enclaves-cli-debuginfo-1.4.5-0.amzn2.aarch64
src:
aws-nitro-enclaves-cli-1.4.5-0.amzn2.src
x86_64:
aws-nitro-enclaves-cli-1.4.5-0.amzn2.x86_64
aws-nitro-enclaves-cli-integration-tests-1.4.5-0.amzn2.x86_64
aws-nitro-enclaves-cli-devel-1.4.5-0.amzn2.x86_64
aws-nitro-enclaves-cli-debuginfo-1.4.5-0.amzn2.x86_64