The definite_length_decoder function in lib/util/quickder.c in Mozilla Network Security…
Priority LOW 39Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.
Summary
The definite_length_decoder function in lib/util/quickder.c in Mozilla Network Security Services (NSS) before 3.16.2.4 and 3.17.x before 3.17.3 does not ensure that the DER encoding of an ASN.1 length is properly formed, which allows remote attackers to conduct data-smuggling attacks by using a long byte sequence for an encoding, as demonstrated by the SEC_QuickDERDecodeItem function's improper handling of an arbitrary-length encoding of 0x00.
Why it matters now
EPSS 0.03182 88th percentileScored 2026-11-07
Public exploit Yes 4 exploit referencesTagged by NVD
Fix Fixed No fixed version in the sources yet
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 · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:* | up to 3.16.2.3 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:network_security_services:3.16.2.0:*:*:*:*:*:*:* | 3.16.2.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:network_security_services:3.16.2.1:*:*:*:*:*:*:* | 3.16.2.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:network_security_services:3.16.2.2:*:*:*:*:*:*:* | 3.16.2.2 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:network_security_services:3.17.0:*:*:*:*:*:*:* | 3.17.0 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:network_security_services:3.17.1:*:*:*:*:*:*:* | 3.17.1 | Vulnerable | Mozilla |
| cpe:2.3:a:mozilla:network_security_services:3.17.2:*:*:*:*:*:*:* | 3.17.2 | Vulnerable | Mozilla |
- cpe:2.3:a:mozilla:network_security_services:*:*:*:*:*:*:*:* Versions up to 3.16.2.3 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:network_security_services:3.16.2.0:*:*:*:*:*:*:* Versions 3.16.2.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:network_security_services:3.16.2.1:*:*:*:*:*:*:* Versions 3.16.2.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:network_security_services:3.16.2.2:*:*:*:*:*:*:* Versions 3.16.2.2 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:network_security_services:3.17.0:*:*:*:*:*:*:* Versions 3.17.0 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:network_security_services:3.17.1:*:*:*:*:*:*:* Versions 3.17.1 Vulnerable ·Mozilla
- cpe:2.3:a:mozilla:network_security_services:3.17.2:*:*:*:*:*:*:* Versions 3.17.2 Vulnerable ·Mozilla
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | — |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | — |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | — |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | — |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | — |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | — |
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | — |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | — |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | — |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | — |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | — |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | — |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | — |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | — |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | — |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | — |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | — |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | — |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | — |
Timeline
- 2026-10-02 Threatist record created from CVE-2014-1569
- 2026-10-03 Alias added: GHSA-r84h-wf26-r7jw
References
Exploit 4
Advisory 7
More Mozilla Network Security Services vulnerabilities
- TI-2015-03381 The TLS protocol 1.2 and earlier, when a DHE_EXPORT ciphersuite is enabled on a server… CVSS 3.1LOW 3.7
- TI-2007-00009 Stack-based buffer overflow in the SSLv2 support in Mozilla Network Security Services… CVSS 2.0MEDIUM 6.8
- TI-2018-08903 A cached side channel attack during handshakes using RSA encryption could allow for the… CVSS 3.0MEDIUM 5.9
- TI-2015-05957 Heap-based buffer overflow in the ASN.1 decoder in Mozilla Network Security Services… CVSS 3.0CRITICAL 9.8
- TI-2004-00763 Heap-based buffer overflow in Netscape Network Security Services (NSS) library allows… CVSS 2.0HIGH 7.5
- TI-2014-01197 Use-after-free vulnerability in the CERT_DestroyCertificate function in libnss3.so in… CVSS 2.0HIGH 10.0
Sources
- CVE-2014-1569 · CVE Program
- CVE-2014-1569 · NVD
- FIRST EPSS
- GHSA-r84h-wf26-r7jw · GitHub Advisory Database · CC BY 4.0
- CVE-2014-1569 · 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