Vulnerability in wolfSSL (CVE-2017-8855)
Summary
Vulnerability in wolfSSL (CVE-2017-8855). Data can be tampered with by attackers.
Original description
The description as published by the source.
wolfSSL before 3.11.0 does not prevent wc_DhAgree from accepting a malformed DH key.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A weakness called CVE-2017-8855 was discovered in wolfSSL.
Severity is High (CVSS 7.5/10). If exploited, attackers can leak data or disrupt key functionality.
What you should do: update the affected software to the latest version. If unsure, ask your IT team or search the vendor's site for "wolfSSL CVE-2017-8855".
CVE-2017-8855 (wolfSSL). Severity: High / CVSSv3 7.5.
Response plan:
- Check the vendor advisory for affected versions and the patched release.
- If a vulnerable version is running in production, schedule maintenance (urgency from KEV/CVSS).
- If no patch yet, mitigate via WAF rule, disabling the affected feature, etc.
- Monitor logs / SIEM for known IOC and PoC signatures of this CVE.
PoCs and fix commits: see the 'References' section, MITRE, and NVD.
A weakness (CVE-2017-8855) in wolfSSL. A serious software flaw has been identified.
Target versions of wolfSSL (see vendor advisory). If running in production, identify exposure immediately.
Severity: High (CVSS 7.5/10). If exploited, attackers can leak data or disrupt key functionality.
Update to the patched release as listed in the vendor advisory.
If a patch is not yet available, consider disabling the affected feature, applying WAF rules, blocking via network ACLs, or isolating the vulnerable version.
Check version information, scan dependencies via SBOM, and monitor SIEM for IOC and PoC signatures related to this CVE.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2017-8855 wolfssl Fixed in: 3.12.0+dfsg-1
References
- patch github.com