Key Management Errors Affecting putty package, versions <0.70-6
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIAN12-PUTTY-1557571
- published21 Mar 2019
- disclosed21 Mar 2019
Introduced: 21 Mar 2019
CVE-2019-9894 (opens in a new tab)How to fix?
Upgrade Debian:12 putty to version 0.70-6 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream putty package and not the putty package as distributed by Debian.
See How to fix? for Debian:12 relevant fixed versions and status.
A remotely triggerable memory overwrite in RSA key exchange in PuTTY before 0.71 can occur before host key verification.
References
- https://security-tracker.debian.org/tracker/CVE-2019-9894
- https://seclists.org/bugtraq/2019/Apr/6
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9894
- https://www.debian.org/security/2019/dsa-4423
- https://lists.debian.org/debian-lts-announce/2019/04/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/36LWQ3NPFIV7DC7TC4KFPRYRH2OR7SZ2/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LDO3F267P347E6U2IILFCYW7JPTLCCES/
- https://www.chiark.greenend.org.uk/~sgtatham/putty/changes.html
- https://security.netapp.com/advisory/ntap-20190404-0001/
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00020.html
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-9894
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36LWQ3NPFIV7DC7TC4KFPRYRH2OR7SZ2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LDO3F267P347E6U2IILFCYW7JPTLCCES/