CVE-2009-2463

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 6.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-07-22 · updated 2026-06-16
Weakness: CWE-189

Description

Multiple integer overflows in the (1) PL_Base64Decode and (2) PL_Base64Encode functions in nsprpub/lib/libc/src/base64.c in Mozilla Firefox before 3.0.12, Thunderbird before 2.0.0.24, and SeaMonkey before 1.1.19 allow remote attackers to cause a denial of service (memory corruption and application crash) or possibly execute arbitrary code via unspecified vectors that trigger buffer overflows.

Affected products

Mozilla Firefox: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+95)
Mozilla Thunderbird: 2.0.0.0, 2.0.0.1, 2.0.0.2, 2.0.0.3, 2.0.0.4, 2.0.0.5 (+15)

References

http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00005.html
http://lists.opensuse.org/opensuse-security-announce/2009-08/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html
http://rhn.redhat.com/errata/RHSA-2009-1162.html
http://rhn.redhat.com/errata/RHSA-2009-1163.html
http://secunia.com/advisories/35914
http://secunia.com/advisories/35943
http://secunia.com/advisories/35944
http://secunia.com/advisories/35947
http://secunia.com/advisories/36005
http://secunia.com/advisories/36145
http://secunia.com/advisories/38977

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