CVE-2012-3423

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.2% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-08-07 · updated 2026-06-16
Weakness: CWE-119

Description

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.

Affected products

icedtea-web: through 1.2; 1.0, 1.1

References

http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=518
http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=863
http://icedtea.classpath.org/hg/release/icedtea-web-1.2/file/icedtea-web-1.2.1/NEWS
http://icedtea.classpath.org/hg/release/icedtea-web-1.2/rev/d65bd94e0ba9
http://icedtea.classpath.org/hg/release/icedtea-web-1.2/rev/d7375e2a9076
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00013.html
http://lists.opensuse.org/opensuse-updates/2013-05/msg00032.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00030.html

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