DEBIAN-CVE-2026-12205

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Source

https://security-tracker.debian.org/tracker/CVE-2026-12205

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12205.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-12205

Upstream

CVE-2026-12205

Published

2026-06-15T23:16:43Z

Modified

2026-09-14T17:01:44Z

Severity

9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

[none]

Details

Crypt::DSA versions before 1.21 for Perl reused the nonce across signatures, leading to private-key recovery. Crypt::DSA::sign caches the per-signature nonce material in the Key object without ever clearing it. The first sign() on a Key object picks a nonce, and every later sign() on that same object reuses it, producing an identical "r". Keys used to sign more than once with an affected version should be considered compromised.

References

https://security-tracker.debian.org/tracker/CVE-2026-12205

Affected packages

Debian:12 / libcrypt-dsa-perl

Package

Name: libcrypt-dsa-perl
Purl: pkg:deb/debian/libcrypt-dsa-perl?arch=source&distro=bookworm

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.17-5

1.19-1

1.20-1

1.21-1

Ecosystem specific

{
    "urgency":  "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-12205.json"

Debian:13 / libcrypt-dsa-perl