Multiple integer overflows in the (1) PL_Base64Decode and (2) PL_Base64Encode functions in nsprpub/lib/libc/src/base64.c in Mozilla…

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.

Scores

EPSS (exploitation in 30 days)

6.4% · top 6.3% of all CVEs (5 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.

Weakness

• n/a
• CWE-189 (opens in a new tab)All about CWE-189 and its CVEs

Affected products

• n/a

  • affected n/a

References (28)

• 265068 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• 1020800 (opens in a new tab)vendor-advisoryx_refsource_SUNALERTx_transferred
• RHSA-2010:0153 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 39001 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• oval:org.mitre.oval:def:10369 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
• https://bugzilla.mozilla.org/show_bug.cgi?id=492779 (opens in a new tab)x_refsource_CONFIRMx_transferred
• FEDORA-2009-7961 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• 36145 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 35944 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2010-0648 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• ADV-2010-0650 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 35943 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• SUSE-SR:2010:013 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• 38977 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• SUSE-SA:2009:039 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• RHSA-2009:1162 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• http://www.mozilla.org/security/announce/2009/mfsa2009-34.html (opens in a new tab)x_refsource_CONFIRMx_transferred
• RHSA-2010:0154 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 35758 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• ADV-2009-2152 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• 36005 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• RHSA-2009:1163 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
• 35947 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• SUSE-SA:2009:042 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
• USN-915-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
• 35914 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• ADV-2009-1972 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
• http://www.mozilla.org/security/announce/2010/mfsa2010-07.html (opens in a new tab)x_refsource_CONFIRMx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2009-2463](https://trackcve.app/badge/CVE-2009-2463.svg)](https://trackcve.app/cve/CVE-2009-2463)

Record last updated 7 Aug 2024, 05:52 UTC.