Full Report
OpenSSL security advisory (AV26-980)
Analysis Summary
# Vulnerability: Multiple Vulnerabilities in OpenSSL Library
## CVE Details
- **CVE ID:** [Pending/Not specified in advisory summary]*
- **CVSS Score:** [Pending/Not specified]*
- **CWE:** [Pending/Not specified]*
*Note: The provided advisory AV26-980 refers to a broad update cycle across multiple OpenSSL branches. Specific CVE identifiers are typically detailed in the linked OpenSSL vulnerability database.*
## Affected Systems
- **Products:** OpenSSL Cryptographic Library
- **Versions:**
- OpenSSL 1.0.2 series prior to 1.0.2zs
- OpenSSL 1.1.1 series prior to 1.1.1zj
- OpenSSL 3.0 series prior to 3.0.23
- OpenSSL 3.4 series prior to 3.4.8
- OpenSSL 3.5 series prior to 3.5.9
- OpenSSL 3.6 series prior to 3.6.5
- OpenSSL 4.0 series prior to 4.0.3
- **Configurations:** Systems utilizing OpenSSL for TLS/SSL termination, certificate management, or general cryptographic operations.
## Vulnerability Description
While the specific technical flaw (e.g., buffer overflow, denial of service, or side-channel attack) is not detailed in the high-level Cyber Centre advisory, the update addresses security flaws within the OpenSSL library that could potentially lead to unauthorized access, data leakage, or service disruption depending on the specific CVEs addressed in these versions.
## Exploitation
- **Status:** Not specified (Assume PoC may follow public disclosure)
- **Complexity:** [Pending detailed CVE analysis]
- **Attack Vector:** [Network | Adjacent] (Typically network-based for SSL/TLS implementations)
## Impact
- **Confidentiality:** Potential Impact
- **Integrity:** Potential Impact
- **Availability:** Potential Impact
## Remediation
### Patches
Upgrade to the following versions or higher as applicable to your release branch:
- **OpenSSL 1.0.2zs** (Premium Support)
- **OpenSSL 1.1.1zj** (Premium Support)
- **OpenSSL 3.0.23** (LTS)
- **OpenSSL 3.4.8**
- **OpenSSL 3.5.9**
- **OpenSSL 3.6.5**
- **OpenSSL 4.0.3**
### Workarounds
- No specific workarounds are provided. Upgrading to a patched version is the recommended course of action.
- For legacy systems (1.0.2 and 1.1.1), ensure a Premium Support contract is in place to access these specific security fixes, as public support for these versions has ended.
## Detection
- **Indicators of compromise:** Monitor for unusual crashes in services utilizing OpenSSL or failed handshake patterns.
- **Detection methods and tools:**
- Conduct a software inventory using `openssl version` or package managers (`rpm -q openssl` / `dpkg -s openssl`).
- Vulnerability scanners (Nessus, OpenVAS) should be updated with the latest plugins for these version strings.
## References
- **Vendor advisories:** hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/openssl-security-advisory-av26-980
- **Relevant links:** hxxps[://]openssl-library[.]org/news/vulnerabilities/