Mozilla Base64 decoding crash
Published Jul 22, 2009
10.0
HIGHCVSS 2.0
EPSS 6.43%
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
No data.
- 0.1
- 0.2
- 0.3
- 0.4
- 0.5
- 0.6
- 0.6.1
- 0.7
- 0.7.1
- 0.8
- 0.9
- 0.9
- 0.9.1
- 0.9.2
- 0.9.3
- 0.9_rc
- 0.10
- 0.10.1
- 1.0
- 1.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.6
- 1.0.7
- 1.0.8
- 1.4.1
- 1.5
- 1.5
- 1.5
- 1.5.0.1
- 1.5.0.2
- 1.5.0.3
- 1.5.0.4
- 1.5.0.5
- 1.5.0.6
- 1.5.0.7
- 1.5.0.8
- 1.5.0.9
- 1.5.0.10
- 1.5.0.11
- 1.5.0.12
- 1.5.1
- 1.5.2
- 1.5.3
- 1.5.4
- 1.5.5
- 1.5.6
- 1.5.7
- 1.5.8
- 1.8
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0.0.1
- 2.0.0.2
- 2.0.0.3
- 2.0.0.4
- 2.0.0.5
- 2.0.0.6
- 2.0.0.7
- 2.0.0.8
- 2.0.0.9
- 2.0.0.10
- 2.0.0.11
- 2.0.0.12
- 2.0.0.13
- 2.0.0.14
- 2.0.0.15
- 2.0.0.16
- 2.0.0.17
- 2.0.0.18
- 2.0.0.19
- 2.0.0.20
- 2.0.0.21
- 2.0_.1
- 2.0_.4
- 2.0_.5
- 2.0_.6
- 2.0_.7
- 2.0_.9
- 2.0_.10
- 2.0_8
- 3.0
- 3.0
- 3.0
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.0.10
- 2.0.0.0
- 2.0.0.1
- 2.0.0.2
- 2.0.0.3
- 2.0.0.4
- 2.0.0.5
- 2.0.0.6
- 2.0.0.7
- 2.0.0.8
- 2.0.0.9
- 2.0.0.11
- 2.0.0.12
- 2.0.0.13
- 2.0.0.14
- 2.0.0.15
- 2.0.0.16
- 2.0.0.17
- 2.0.0.18
- 2.0.0.19
- 2.0.0.20
- 2.0.0.21
No data.
Red Hat Enterprise Linux 3
seamonkey-0:1.0.9-0.40.el3
Fixed · RHSA-2009:1163
Red Hat Enterprise Linux 4
firefox-0:3.0.12-1.el4
Fixed · RHSA-2009:1162
Red Hat Enterprise Linux 4
seamonkey-0:1.0.9-45.el4_8
Fixed · RHSA-2009:1163
Red Hat Enterprise Linux 4
thunderbird-0:1.5.0.12-25.el4
Fixed · RHSA-2010:0154
Red Hat Enterprise Linux 5
firefox-0:3.0.12-1.el5_3
Fixed · RHSA-2009:1162
Red Hat Enterprise Linux 5
thunderbird-0:2.0.0.24-2.el5_4
Fixed · RHSA-2010:0153
Red Hat Enterprise Linux 5
xulrunner-0:1.9.0.12-1.el5_3
Fixed · RHSA-2009:1162
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 3 | seamonkey-0:1.0.9-0.40.el3 | Fixed | RHSA-2009:1163 |
| Red Hat Enterprise Linux 4 | firefox-0:3.0.12-1.el4 | Fixed | RHSA-2009:1162 |
| Red Hat Enterprise Linux 4 | seamonkey-0:1.0.9-45.el4_8 | Fixed | RHSA-2009:1163 |
| Red Hat Enterprise Linux 4 | thunderbird-0:1.5.0.12-25.el4 | Fixed | RHSA-2010:0154 |
| Red Hat Enterprise Linux 5 | firefox-0:3.0.12-1.el5_3 | Fixed | RHSA-2009:1162 |
| Red Hat Enterprise Linux 5 | thunderbird-0:2.0.0.24-2.el5_4 | Fixed | RHSA-2010:0153 |
| Red Hat Enterprise Linux 5 | xulrunner-0:1.9.0.12-1.el5_3 | Fixed | RHSA-2009:1162 |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 6.43% (0.06433) | 93.51th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.43% (0.06433) | 92.81th | v5 (v2026.06.15) |
| May 17, 2026 | 4.11% (0.04113) | 88.72th | v4 (v2025.03.14) |
| Dec 14, 2025 | 5.53% (0.05526) | 89.91th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.17% (0.04167) | 87.61th | v4 (v2025.03.14) |
| Mar 29, 2025 | 11.28% (0.11279) | 89.17th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.96% (0.04957) | 88.93th | v4 (v2025.03.14) |
| Dec 12, 2024 | 8.32% (0.08323) | 94.65th | v3 (v2023.03.01) |
| Mar 1, 2024 | 8.32% (0.08323) | 94.20th | v3 (v2023.03.01) |
| Jan 20, 2024 | 9.45% (0.09447) | 94.17th | v3 (v2023.03.01) |
| Oct 25, 2023 | 10.37% (0.10372) | 94.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 11.59% (0.11594) | 94.33th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.23% (0.08228) | 93.49th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.23% (0.08228) | 92.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.23% (0.08228) | 82.23th | v2 (v2022.01.01) |
References (32)
- http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00005.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2009-08/msg00002.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2010-06/msg00001.html vendor-advisoryx_refsource_SUSE
- http://rhn.redhat.com/errata/RHSA-2009-1162.html vendor-advisoryx_refsource_REDHAT
- http://rhn.redhat.com/errata/RHSA-2009-1163.html vendor-advisoryx_refsource_REDHAT
- http://secunia.com/advisories/35914 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/35943 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/35944 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/35947 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/36005 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/36145 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/38977 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/39001 third-party-advisoryx_refsource_SECUNIA
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-265068-1 vendor-advisoryx_refsource_SUNALERT
- http://sunsolve.sun.com/search/document.do?assetkey=1-77-1020800.1-1 vendor-advisoryx_refsource_SUNALERT
- http://www.mozilla.org/security/announce/2009/mfsa2009-34.html x_refsource_CONFIRMVendor Advisory
- http://www.mozilla.org/security/announce/2010/mfsa2010-07.html x_refsource_CONFIRM
- http://www.redhat.com/support/errata/RHSA-2010-0153.html vendor-advisoryx_refsource_REDHAT
- http://www.redhat.com/support/errata/RHSA-2010-0154.html vendor-advisoryx_refsource_REDHAT
- http://www.securityfocus.com/bid/35758 vdb-entryx_refsource_BIDPatch
- http://www.ubuntu.com/usn/USN-915-1 vendor-advisoryx_refsource_UBUNTU
- http://www.vupen.com/english/advisories/2009/1972 vdb-entryx_refsource_VUPENPatchVendor Advisory
- http://www.vupen.com/english/advisories/2009/2152 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2010/0648 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2010/0650 vdb-entryx_refsource_VUPEN
- https://access.redhat.com/security/cve/CVE-2009-2463 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=492779 x_refsource_CONFIRMVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=512131 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2009-2463
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10369 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2009-2463
- https://www.redhat.com/archives/fedora-package-announce/2009-July/msg01032.html vendor-advisoryx_refsource_FEDORA
Change history (0)
No recorded changes yet.