CVE catalog
CVE-2016-4008
libtasn1-6: CVE-2016-4008
- Severity
- Medium · CVSS 5.9
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 29.40% · Oct 25, 2026
The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.8, when used without the ASN1_DECODE_FLAG_STRICT_DER flag, allows remote attackers to cause a denial of service (infinite recursion) via a crafted certificate.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libtasn1-6 | sid | 4.21.0-2 | fixed |
| Debian | libtasn1-6 | forky | 4.21.0-2 | fixed |
| Debian | libtasn1-6 | trixie | 4.20.0-2+deb13u1 | fixed |
| Debian | libtasn1-6 | bookworm | 4.19.0-2+deb12u1 | fixed |
| Debian | libtasn1-6 | bookworm-security | 4.19.0-2+deb12u1 | fixed |
| Ubuntu | libtasn1-6 | 14.04 | 3.3-2 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-2 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-3 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-3ubuntu0.1 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-3ubuntu0.2 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-3ubuntu0.3 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-3ubuntu0.4 | fixed |
| Ubuntu | libtasn1-6 | 16.04 | 4.5-2 | vulnerable |
| Ubuntu | libtasn1-6 | 16.04 | 4.7-2 | vulnerable |
| Ubuntu | libtasn1-6 | 16.04 | 4.7-3 | vulnerable |
| Ubuntu | libtasn1-6 | 16.04 | 4.7-3ubuntu0.16.04.1 | fixed |
| Ubuntu | libtasn1-6 | 14.04 | 3.3-2 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-2 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-3 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-3ubuntu0.1 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-3ubuntu0.2 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-3ubuntu0.3 | vulnerable |
| Ubuntu | libtasn1-6 | 14.04 | 3.4-3ubuntu0.4 | fixed |
| Ubuntu | libtasn1-6 | 16.04 | 4.5-2 | vulnerable |
| Ubuntu | libtasn1-6 | 16.04 | 4.7-2 | vulnerable |
| Ubuntu | libtasn1-6 | 16.04 | 4.7-3 | vulnerable |
| Ubuntu | libtasn1-6 | 16.04 | 4.7-3ubuntu0.16.04.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libtasn1-6 | source | sid | 4.8-1 | not yet assigned | Not reported | Not reported |
| Debian | libtasn1-6 | source | forky | 4.8-1 | not yet assigned | Not reported | Not reported |
| Debian | libtasn1-6 | source | trixie | 4.8-1 | not yet assigned | Not reported | Not reported |
| Debian | libtasn1-6 | source | bookworm | 4.8-1 | not yet assigned | Not reported | Not reported |
| Ubuntu | libtasn1-6 | deb | 14.04 | 3.4-3ubuntu0.4 | Not reported | UBUNTU-CVE-2016-4008 | Not reported |
| Ubuntu | libtasn1-6 | deb | 16.04 | 4.7-3ubuntu0.16.04.1 | Not reported | UBUNTU-CVE-2016-4008 | Not reported |
| Ubuntu | libtasn1-6 | deb | 14.04 | 3.4-3ubuntu0.4 | Not reported | USN-2957-1 | Not reported |
| Ubuntu | libtasn1-6 | deb | 16.04 | 4.7-3ubuntu0.16.04.1 | Not reported | USN-2957-2 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libtasn1-6]Fixed
Details (4)
4.19.0-2+deb12u1· amd64 · bookwormFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookwormFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
- [libtasn1-6-dev]Fixed
Source package: [libtasn1-6]
Details (4)
4.19.0-2+deb12u1· amd64 · bookwormFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookwormFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
- [libtasn1-bin]Fixed
Source package: [libtasn1-6]
Details (4)
4.19.0-2+deb12u1· amd64 · bookwormFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookwormFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
- [libtasn1-doc]Fixed
Source package: [libtasn1-6]
Details (4)
4.19.0-2+deb12u1· all · bookwormFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· all · bookwormFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· all · bookworm-securityFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
4.19.0-2+deb12u1· all · bookworm-securityFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · bookworm; dsa · libtasn1-6 · debian · 12
[Debian 13 (Trixie)]
- [libtasn1-6]Fixed
Details (2)
4.20.0-2+deb13u1· amd64 · trixieFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · 13
4.20.0-2+deb13u1· arm64 · trixieFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · 13
- [libtasn1-6-dev]Fixed
Source package: [libtasn1-6]
Details (2)
4.20.0-2+deb13u1· amd64 · trixieFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · 13
4.20.0-2+deb13u1· arm64 · trixieFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · 13
- [libtasn1-bin]Fixed
Source package: [libtasn1-6]
Details (2)
4.20.0-2+deb13u1· amd64 · trixieFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · 13
4.20.0-2+deb13u1· arm64 · trixieFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · 13
- [libtasn1-doc]Fixed
Source package: [libtasn1-6]
Details (2)
4.20.0-2+deb13u1· all · trixieFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · 13
4.20.0-2+deb13u1· all · trixieFixed · Fixed:
4.8-1dsa · libtasn1-6 · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2016_1600-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2016-4008]
- [https://osv.dev/vulnerability/DLA-495-1]
- [https://osv.dev/vulnerability/DSA-3568-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2016-4008]
- [https://osv.dev/vulnerability/USN-2957-1]
- [https://osv.dev/vulnerability/USN-2957-2]
- [https://security-tracker.debian.org/tracker/CVE-2016-4008]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]