Vulnerability Description
PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client).
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Putty | Putty | >= 0.68, <= 0.73 |
| Netapp | Oncommand Unified Manager Core Package | - |
| Fedoraproject | Fedora | 31 |
Related Weaknesses (CWE)
References
- https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.tartarus.org/pipermail/putty-announce/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200717-0003/Third Party Advisory
- https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.htmlRelease NotesThird Party Advisory
- https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-inThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.tartarus.org/pipermail/putty-announce/Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200717-0003/Third Party Advisory
- https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.htmlRelease NotesThird Party Advisory
- https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-inThird Party Advisory
FAQ
What is CVE-2020-14002?
CVE-2020-14002 is a vulnerability with a CVSS score of 5.9 (MEDIUM). PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where ...
How severe is CVE-2020-14002?
CVE-2020-14002 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-14002?
Check the references section above for vendor advisories and patch information. Affected products include: Putty Putty, Netapp Oncommand Unified Manager Core Package, Fedoraproject Fedora.