Red Hat Security Advisory: openssl security update
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library. Security Fix(es): * openssl: Use After Free with SSL_free_buffers (CVE-2024-4741) * openssl: Heap Use-After-Free in OpenSSL PKCS7_verify() (CVE-2026-45447) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
This advisory covers two use-after-free vulnerabilities in OpenSSL: CVE-2024-4741 related to SSL_free_buffers and CVE-2026-45447 related to PKCS7_verify(). Both vulnerabilities involve heap memory misuse that could lead to potential security issues. The affected software includes Red Hat Enterprise Linux 8 and its Extended Update Support and specialized update services. Red Hat has released patches to fix these vulnerabilities as part of their OpenSSL package updates.
Potential Impact
The vulnerabilities are use-after-free bugs that could potentially lead to memory corruption or crashes in applications using the affected OpenSSL functions. Red Hat rates the security impact as Important (high severity). There are no known exploits in the wild reported at this time.
Mitigation Recommendations
A security update for OpenSSL is available from Red Hat and should be applied to affected systems. Refer to Red Hat's official advisory RHSA-2026:26275 and the update instructions at https://access.redhat.com/articles/11258 for detailed patching guidance. Applying the update fully mitigates these vulnerabilities.
Red Hat Security Advisory: openssl security update
Description
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library. Security Fix(es): * openssl: Use After Free with SSL_free_buffers (CVE-2024-4741) * openssl: Heap Use-After-Free in OpenSSL PKCS7_verify() (CVE-2026-45447) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This advisory covers two use-after-free vulnerabilities in OpenSSL: CVE-2024-4741 related to SSL_free_buffers and CVE-2026-45447 related to PKCS7_verify(). Both vulnerabilities involve heap memory misuse that could lead to potential security issues. The affected software includes Red Hat Enterprise Linux 8 and its Extended Update Support and specialized update services. Red Hat has released patches to fix these vulnerabilities as part of their OpenSSL package updates.
Potential Impact
The vulnerabilities are use-after-free bugs that could potentially lead to memory corruption or crashes in applications using the affected OpenSSL functions. Red Hat rates the security impact as Important (high severity). There are no known exploits in the wild reported at this time.
Mitigation Recommendations
A security update for OpenSSL is available from Red Hat and should be applied to affected systems. Refer to Red Hat's official advisory RHSA-2026:26275 and the update instructions at https://access.redhat.com/articles/11258 for detailed patching guidance. Applying the update fully mitigates these vulnerabilities.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:26275
- Cve Count
- 2
- Additional Cves
- ["CVE-2026-45447"]
Threat ID: 6a32705d0b89be68881d4a63
Added to database: 06/17/2026, 10:01:01 UTC
Last enriched: 08/16/2026, 18:34:36 UTC
Last updated: 09/14/2026, 22:01:26 UTC
Views: 238
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