The IcedTea-Web plugin before 1.2.1 does not properly handle NPVariant NPStrings without…
Priority MEDIUM 42CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- Fixed
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 IcedTea-Web plugin before 1.2.1 does not properly handle NPVariant NPStrings without NUL terminators, which allows remote attackers to cause a denial of service (crash), obtain sensitive information from memory, or execute arbitrary code via a crafted Java applet.
Why it matters now
EPSS 0.06172 93rd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed Red Hat: 1 advisory
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
Remediation
Red Hat 1 advisory
- RHSA-2012:1132 Released 2012-07-31 · Red Hat rating Importanticedtea-web security update
- Red Hat Enterprise Linux Desktop (v. 6) icedtea-web-1.2.1-1.el6_3
- Red Hat Enterprise Linux Desktop Optional (v. 6) icedtea-web-1.2.1-1.el6_3, icedtea-web-javadoc-1.2.1-1.el6_3
- Red Hat Enterprise Linux HPC Node (v. 6) icedtea-web-1.2.1-1.el6_3
- Red Hat Enterprise Linux HPC Node Optional (v. 6) icedtea-web-1.2.1-1.el6_3, icedtea-web-javadoc-1.2.1-1.el6_3
- Red Hat Enterprise Linux Server (v. 6) icedtea-web-1.2.1-1.el6_3
- Red Hat Enterprise Linux Server Optional (v. 6) icedtea-web-1.2.1-1.el6_3, icedtea-web-javadoc-1.2.1-1.el6_3
- Red Hat Enterprise Linux Workstation (v. 6) icedtea-web-1.2.1-1.el6_3
- Red Hat Enterprise Linux Workstation Optional (v. 6) icedtea-web-1.2.1-1.el6_3, icedtea-web-javadoc-1.2.1-1.el6_3
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux Desktop (v. 6) | Fixed | RHSA-2012:1132 |
| Red Hat Enterprise Linux Desktop Optional (v. 6) | Fixed | RHSA-2012:1132 |
| Red Hat Enterprise Linux HPC Node (v. 6) | Fixed | RHSA-2012:1132 |
| Red Hat Enterprise Linux HPC Node Optional (v. 6) | Fixed | RHSA-2012:1132 |
| Red Hat Enterprise Linux Server (v. 6) | Fixed | RHSA-2012:1132 |
| Red Hat Enterprise Linux Server Optional (v. 6) | Fixed | RHSA-2012:1132 |
| Red Hat Enterprise Linux Workstation (v. 6) | Fixed | RHSA-2012:1132 |
| Red Hat Enterprise Linux Workstation Optional (v. 6) | Fixed | RHSA-2012:1132 |
Timeline
- 2026-10-02 Threatist record created from CVE-2012-3423
- 2026-10-03 Alias added: GHSA-wg7g-m9g6-qcmw
References
Exploit 2
Advisory 12
More Red Hat Icedtea-web vulnerabilities
- TI-2011-00614 The JNLPClassLoader class in IcedTea-Web before 1.0.1, as used in OpenJDK Runtime… CVSS 2.0HIGH 7.5
- TI-2013-01703 The IcedTea-Web plugin before 1.2.3 and 1.3.x before 1.3.2 allows remote attackers to… CVSS 2.0MEDIUM 6.8
- TI-2012-03880 Off-by-one error in the invoke function in IcedTeaScriptablePluginObject.cc in… CVSS 2.0MEDIUM 6.8
- TI-2012-02951 The getFirstInTableInstance function in the IcedTea-Web plugin before 1.2.1 returns an… CVSS 2.0MEDIUM 6.8
- TI-2011-02206 The Java Network Launching Protocol (JNLP) implementation in IcedTea6 1.9.x before 1.9.9… CVSS 2.0MEDIUM 6.8
- TI-2013-01702 The IcedTea-Web plugin before 1.2.3 and 1.3.x before 1.3.2 uses the same class loader for… CVSS 2.0MEDIUM 5.8
Sources
- CVE-2012-3423 · CVE Program
- CVE-2012-3423 · NVD
- FIRST EPSS
- GHSA-wg7g-m9g6-qcmw · GitHub Advisory Database · CC BY 4.0
- CVE-2012-3423 · 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