An update for openssl is now available for openEuler-24.03-LTS-SP3 Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2026-1312 Final 1.0 1.0 2026-02-06 Initial 2026-02-06 2026-02-06 openEuler SA Tool V1.0 2026-02-06 openssl security update An update for openssl is now available for openEuler-24.03-LTS-SP3 OpenSSL is a robust, commercial-grade, and full-featured toolkit for the Transport Layer Security (TLS) and Secure Sockets Layer (SSL) protocols. Security Fix(es): Issue summary: Parsing CMS AuthEnvelopedData message with maliciously crafted AEAD parameters can trigger a stack buffer overflow. Impact summary: A stack buffer overflow may lead to a crash, causing Denial of Service, or potentially remote code execution. When parsing CMS AuthEnvelopedData structures that use AEAD ciphers such as AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is copied into a fixed-size stack buffer without verifying that its length fits the destination. An attacker can supply a crafted CMS message with an oversized IV, causing a stack-based out-of-bounds write before any authentication or tag verification occurs. Applications and services that parse untrusted CMS or PKCS#7 content using AEAD ciphers (e.g., S/MIME AuthEnvelopedData with AES-GCM) are vulnerable. Because the overflow occurs prior to authentication, no valid key material is required to trigger it. While exploitability to remote code execution depends on platform and toolchain mitigations, the stack-based write primitive represents a severe risk. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the CMS implementation is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue. OpenSSL 1.1.1 and 1.0.2 are not affected by this issue.(CVE-2025-15467) An update for openssl is now available for openEuler-24.03-LTS-SP3. openEuler Security has rated this update as having a security impact of critical. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Critical openssl https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1312 https://www.openeuler.org/en/security/cve/detail/?cveId=CVE-2025-15467 https://nvd.nist.gov/vuln/detail/CVE-2025-15467 openEuler-24.03-LTS-SP3 openssl-3.0.12-32.oe2403sp3.aarch64.rpm openssl-debuginfo-3.0.12-32.oe2403sp3.aarch64.rpm openssl-debugsource-3.0.12-32.oe2403sp3.aarch64.rpm openssl-devel-3.0.12-32.oe2403sp3.aarch64.rpm openssl-libs-3.0.12-32.oe2403sp3.aarch64.rpm openssl-perl-3.0.12-32.oe2403sp3.aarch64.rpm openssl-3.0.12-32.oe2403sp3.src.rpm openssl-3.0.12-32.oe2403sp3.x86_64.rpm openssl-debuginfo-3.0.12-32.oe2403sp3.x86_64.rpm openssl-debugsource-3.0.12-32.oe2403sp3.x86_64.rpm openssl-devel-3.0.12-32.oe2403sp3.x86_64.rpm openssl-libs-3.0.12-32.oe2403sp3.x86_64.rpm openssl-perl-3.0.12-32.oe2403sp3.x86_64.rpm openssl-help-3.0.12-32.oe2403sp3.noarch.rpm Issue summary: Parsing CMS AuthEnvelopedData message with maliciously crafted AEAD parameters can trigger a stack buffer overflow. Impact summary: A stack buffer overflow may lead to a crash, causing Denial of Service, or potentially remote code execution. When parsing CMS AuthEnvelopedData structures that use AEAD ciphers such as AES-GCM, the IV (Initialization Vector) encoded in the ASN.1 parameters is copied into a fixed-size stack buffer without verifying that its length fits the destination. An attacker can supply a crafted CMS message with an oversized IV, causing a stack-based out-of-bounds write before any authentication or tag verification occurs. Applications and services that parse untrusted CMS or PKCS#7 content using AEAD ciphers (e.g., S/MIME AuthEnvelopedData with AES-GCM) are vulnerable. Because the overflow occurs prior to authentication, no valid key material is required to trigger it. While exploitability to remote code execution depends on platform and toolchain mitigations, the stack-based write primitive represents a severe risk. The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the CMS implementation is outside the OpenSSL FIPS module boundary. OpenSSL 3.6, 3.5, 3.4, 3.3 and 3.0 are vulnerable to this issue. OpenSSL 1.1.1 and 1.0.2 are not affected by this issue. 2026-02-06 CVE-2025-15467 openEuler-24.03-LTS-SP3 Critical 9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H openssl security update 2026-02-06 https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1312