openssl: openssl: Denial of Service due to out-of-bounds read in AES-CFB128

A flaw was found in openssl. Applications using AES-CFB128 encryption or decryption on systems with AVX-512 and VAES support may experience a Denial of Service DoS. This occurs when processing partial cipher blocks, specifically if the input buffer ends at a memory page boundary and the subsequen...

CVE-2026-28386

Issue summary: Applications using AES-CFB128 encryption or decryption on systems with AVX-512 and VAES support can trigger an out-of-bounds read of up to 15 bytes when processing partial cipher blocks. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service fo...

DEBIAN-CVE-2026-28386

Issue summary: Applications using AES-CFB128 encryption or decryption on systems with AVX-512 and VAES support can trigger an out-of-bounds read of up to 15 bytes when processing partial cipher blocks. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service fo...

CVE-2026-28386 Out-of-bounds Read in AES-CFB-128 on X86-64 with AVX-512 Support

Issue summary: Applications using AES-CFB128 encryption or decryption on systems with AVX-512 and VAES support can trigger an out-of-bounds read of up to 15 bytes when processing partial cipher blocks. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service fo...

CVE-2026-28386 Out-of-bounds Read in AES-CFB-128 on X86-64 with AVX-512 Support

Issue summary: Applications using AES-CFB128 encryption or decryption on systems with AVX-512 and VAES support can trigger an out-of-bounds read of up to 15 bytes when processing partial cipher blocks. Impact summary: This out-of-bounds read may trigger a crash which leads to Denial of Service fo...

CVE-2026-28386

The CVE CVE-2026-28386 affects OpenSSL’s FIPS module (version 3.6) on x86-64 systems with AVX-512 and VAES. A partial-block processing path in AES-CFB-128 can trigger an out-of-bounds read of up to 15 bytes when the input buffer sits at a page boundary and the next page is unmapped, potentially c...

PT-2026-31035

Name of the Vulnerable Software and Affected Versions OpenSSL FIPS Module version 3.6 Description Applications utilizing AES-CFB128 encryption or decryption on systems equipped with AVX-512 and VAES support may experience an out-of-bounds read of up to 15 bytes when handling partial cipher blocks...

OpenSSL Security Advisory 20260407

OpenSSL Security Advisory 20260407 - Applications using RSASVE key encapsulation to establish a secret encryption key can send contents of an uninitialized memory buffer to a malicious peer. Applications using AES-CFB128 encryption or decryption on systems with AVX-512 and VAES support can trigge...