CVE-2020-14002
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2020-14002
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-14002.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2020-14002
- Downstream
- Related
- Published
- 2020-06-29T18:15:11Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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).
- References
-
- https://lists.tartarus.org/pipermail/putty-announce/
- https://security.netapp.com/advisory/ntap-20200717-0003/
- https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
- https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/
- https://lists.debian.org/debian-lts-announce/2024/04/msg00016.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26TACCSQYYCPWAJYNAUIXJGZ5RGORJZV/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JPV4A77EDCT4BTFO5BE26ZH72BG4E5IJ/