DEBIAN-CVE-2026-8463
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-8463
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-8463.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-8463
- Upstream
- Published
- 2026-05-13T14:18:17Z
- Modified
- 2026-09-14T17:03:37Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- [none]
- Details
-
Crypt::Argon2 versions from 0.017 before 0.031 for Perl perform a heap out-of-bounds read in argon2_verify on empty encoded input. The auto-detect form of argon2_verify passes encoded_len - 1 as the length argument to memchr without checking that encoded_len is non-zero. When the encoded string is empty, the size_t subtraction underflows to SIZE_MAX and memchr scans adjacent heap memory looking for a '$' separator byte. A caller that invokes argon2_verify against a stored hash that may legitimately be empty (for example a placeholder row or a NULL column materialised as an empty string) reads out-of-bounds heap memory, which can crash the process or leak the position of an adjacent '$' byte into subsequent parsing.
- References
Affected packages
Debian:12 / libcrypt-argon2-perl
Package
- Name
- libcrypt-argon2-perl
- Purl
- pkg:deb/debian/libcrypt-argon2-perl?arch=source&distro=bookworm
Debian:13 / libcrypt-argon2-perl
Package
- Name
- libcrypt-argon2-perl
- Purl
- pkg:deb/debian/libcrypt-argon2-perl?arch=source&distro=trixie
Debian:14 / libcrypt-argon2-perl
Package
- Name
- libcrypt-argon2-perl
- Purl
- pkg:deb/debian/libcrypt-argon2-perl?arch=source&distro=forky