CVSS 3.1
5.9 mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NCVE-2023-46445
Medium (5.9) in asyncssh project asyncssh. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in asyncssh 2.14.1.
An issue in AsyncSSH before 2.14.1 allows attackers to control the extension info message (RFC 8308) via a man-in-the-middle attack, aka a "Rogue Extension Negotiation."
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
- CWE
- CWE-345
- Published
- Modified
- Record from
- the NVD, synced
Affected
- asyncssh_project:asyncssh
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-cfc2-wr2v-gxm5 | PyPI | asyncssh | <2.14.1 | 2.14.1 |
| PYSEC-2023-237 | PyPI | asyncssh | <2.14.1 | 2.14.1 |
References
- http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html
- https://github.com/advisories/GHSA-cfc2-wr2v-gxm5
- https://github.com/ronf/asyncssh/blob/develop/docs/changes.rst
- https://github.com/ronf/asyncssh/security/advisories/GHSA-cfc2-wr2v-gxm5
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ME34ROZWMDK5KLMZKTSA422XVJZ7IMTE/