DEBIAN-CVE-2026-2474

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Source

https://security-tracker.debian.org/tracker/CVE-2026-2474

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2474.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-2474

Upstream

CVE-2026-2474

Published

2026-02-16T21:22:18Z

Modified

2026-09-14T17:02:58Z

Severity

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

Summary

[none]

Details

Crypt::URandom versions from 0.41 before 0.55 for Perl is vulnerable to a heap buffer overflow in the XS function crypt_urandom_getrandom(). The function does not validate that the length parameter is non-negative. If a negative value (e.g. -1) is supplied, the expression length + 1u causes an integer wraparound, resulting in a zero-byte allocation. The subsequent call to getrandom(data, length, GRND_NONBLOCK) passes the original negative value, which is implicitly converted to a large unsigned value (typically SIZE_MAX). This can result in writes beyond the allocated buffer, leading to heap memory corruption and application crash (denial of service). In common usage, the length argument is typically hardcoded by the caller, which reduces the likelihood of attacker-controlled exploitation. Applications that pass untrusted input to this parameter may be affected.

References

https://security-tracker.debian.org/tracker/CVE-2026-2474

Affected packages

Debian:13 / libcrypt-urandom-perl

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

0.54-1+deb13u1

Affected versions

0.*

0.54-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-2474.json"

Debian:14 / libcrypt-urandom-perl