The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.5 allows…
Priority MEDIUM 45CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Partial Red Hat: 8 fixed, 2 without a fix
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-119 and the CVSS impact.
Summary
The _asn1_extract_der_octet function in lib/decoding.c in GNU Libtasn1 before 4.5 allows remote attackers to cause a denial of service (out-of-bounds heap read) via a crafted certificate.
Why it matters now
EPSS 0.32892 98th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Partial Red Hat: 1 advisoryRed Hat: 8 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* | 13.2 | Vulnerable | openSUSE |
| cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:* | 21 | Vulnerable | Fedoraproject |
| cpe:2.3:a:gnu:libtasn1:*:*:*:*:*:*:*:* | up to 4.4 | Vulnerable | GNU |
- cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* Versions 13.2 Vulnerable ·openSUSE
- cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:* Versions 21 Vulnerable ·Fedoraproject
- cpe:2.3:a:gnu:libtasn1:*:*:*:*:*:*:*:* Versions up to 4.4 Vulnerable ·GNU
Remediation
Red Hat 1 advisory
- RHSA-2017:1860 Released 2017-08-01 · Red Hat rating Moderatelibtasn1 security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) libtasn1-4.10-1.el7
- Red Hat Enterprise Linux Client Optional (v. 7) libtasn1-devel-4.10-1.el7, libtasn1-tools-4.10-1.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) libtasn1-4.10-1.el7
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) libtasn1-devel-4.10-1.el7, libtasn1-tools-4.10-1.el7
- Red Hat Enterprise Linux Server (v. 7) libtasn1-4.10-1.el7, libtasn1-4.10-1.el7.ppc, libtasn1-devel-4.10-1.el7 +1
- Red Hat Enterprise Linux Server Optional (v. 7) libtasn1-tools-4.10-1.el7
- Red Hat Enterprise Linux Workstation (v. 7) libtasn1-4.10-1.el7, libtasn1-devel-4.10-1.el7
- Red Hat Enterprise Linux Workstation Optional (v. 7) libtasn1-tools-4.10-1.el7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Virtualization 3 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:1860 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:1860 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2017:1860 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2017:1860 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:1860 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:1860 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:1860 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:1860 |
Timeline
- 2026-10-02 Threatist record created from CVE-2015-3622
- 2026-10-03 Alias added: GHSA-359p-x9w8-8g33
References
Exploit 2
Advisory 9
Sources
- CVE-2015-3622 · CVE Program
- CVE-2015-3622 · NVD
- FIRST EPSS
- GHSA-359p-x9w8-8g33 · GitHub Advisory Database · CC BY 4.0
- CVE-2015-3622 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences