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Fencer Vulns
critical 9.3

CVE-2008-5013 json

Mozilla Firefox 2.x before 2.0.0.18 and SeaMonkey 1.x before 1.1.13 do not properly check when the Flash module has been dynamically unload…

published 2008-11-13 17 y ago modified 2026-06-16 4 mo ago also EUVD-2008-4992

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.8%
EPSS 4.8% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

Mozilla Firefox 2.x before 2.0.0.18 and SeaMonkey 1.x before 1.1.13 do not properly check when the Flash module has been dynamically unloaded properly, which allows remote attackers to execute arbitrary code via a crafted SWF file that "dynamically unloads itself from an outside JavaScript function," which triggers an access of an expired memory address.

Patch / fix

  • seamonkey RHEL 2.1 1.0.9-0.21.el2
  • seamonkey RHEL 3 1.0.9-0.25.el3
  • seamonkey RHEL 4 1.0.9-28.el4
  • seamonkey-nss RHEL 2.1 1.0.9-0.21.el2
  • seamonkey-nss RHEL 3 1.0.9-0.25.el3
  • seamonkey-chat RHEL 2.1 1.0.9-0.21.el2
  • seamonkey-chat RHEL 3 1.0.9-0.25.el3
  • seamonkey-chat RHEL 4 1.0.9-28.el4

red hat advisories RHSA-2008:0977

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2008-5013 updated

Mozilla Flash Player dynamic module unloading flaw

  • Red Hat Desktop version 3 seamonkey 1.0.9-0.25.el3, seamonkey-nss 1.0.9-0.25.el3, seamonkey-chat 1.0.9-0.25.el3, seamonkey-mail 1.0.9-0.25.el3, seamonkey-nspr 1.0.9-0.25.el3, seamonkey-js-debugger 1.0.9-0.25.el3, +1 more Red Hat Enterprise Linux AS (Advanced Server) version 2.1 seamonkey 1.0.9-0.21.el2, seamonkey-nss 1.0.9-0.21.el2, seamonkey-chat 1.0.9-0.21.el2, seamonkey-mail 1.0.9-0.21.el2, seamonkey-nspr 1.0.9-0.21.el2, seamonkey-js-debugger 1.0.9-0.21.el2, +1 more Red Hat Enterprise Linux AS version 3 seamonkey 1.0.9-0.25.el3, seamonkey-nss 1.0.9-0.25.el3, seamonkey-chat 1.0.9-0.25.el3, seamonkey-mail 1.0.9-0.25.el3, seamonkey-nspr 1.0.9-0.25.el3, seamonkey-js-debugger 1.0.9-0.25.el3, +1 more Red Hat Enterprise Linux AS version 4 seamonkey 1.0.9-28.el4, seamonkey-chat 1.0.9-28.el4, seamonkey-mail 1.0.9-28.el4, seamonkey-js-debugger 1.0.9-28.el4, seamonkey-dom-inspector 1.0.9-28.el4 Red Hat Enterprise Linux Desktop version 4 seamonkey 1.0.9-28.el4, seamonkey-chat 1.0.9-28.el4, seamonkey-mail 1.0.9-28.el4, seamonkey-js-debugger 1.0.9-28.el4, seamonkey-dom-inspector 1.0.9-28.el4 Red Hat Enterprise Linux ES version 2.1 seamonkey 1.0.9-0.21.el2, seamonkey-nss 1.0.9-0.21.el2, seamonkey-chat 1.0.9-0.21.el2, seamonkey-mail 1.0.9-0.21.el2, seamonkey-nspr 1.0.9-0.21.el2, seamonkey-js-debugger 1.0.9-0.21.el2, +1 more
    +6 more products
    Red Hat Enterprise Linux ES version 3 seamonkey 1.0.9-0.25.el3, seamonkey-nss 1.0.9-0.25.el3, seamonkey-chat 1.0.9-0.25.el3, seamonkey-mail 1.0.9-0.25.el3, seamonkey-nspr 1.0.9-0.25.el3, seamonkey-js-debugger 1.0.9-0.25.el3, +1 more Red Hat Enterprise Linux ES version 4 seamonkey 1.0.9-28.el4, seamonkey-chat 1.0.9-28.el4, seamonkey-mail 1.0.9-28.el4, seamonkey-js-debugger 1.0.9-28.el4, seamonkey-dom-inspector 1.0.9-28.el4 Red Hat Enterprise Linux WS version 2.1 seamonkey 1.0.9-0.21.el2, seamonkey-nss 1.0.9-0.21.el2, seamonkey-chat 1.0.9-0.21.el2, seamonkey-mail 1.0.9-0.21.el2, seamonkey-nspr 1.0.9-0.21.el2, seamonkey-js-debugger 1.0.9-0.21.el2, +1 more Red Hat Enterprise Linux WS version 3 seamonkey 1.0.9-0.25.el3, seamonkey-nss 1.0.9-0.25.el3, seamonkey-chat 1.0.9-0.25.el3, seamonkey-mail 1.0.9-0.25.el3, seamonkey-nspr 1.0.9-0.25.el3, seamonkey-js-debugger 1.0.9-0.25.el3, +1 more Red Hat Enterprise Linux WS version 4 seamonkey 1.0.9-28.el4, seamonkey-chat 1.0.9-28.el4, seamonkey-mail 1.0.9-28.el4, seamonkey-js-debugger 1.0.9-28.el4, seamonkey-dom-inspector 1.0.9-28.el4 Red Hat Linux Advanced Workstation 2.1 seamonkey 1.0.9-0.21.el2, seamonkey-nss 1.0.9-0.21.el2, seamonkey-chat 1.0.9-0.21.el2, seamonkey-mail 1.0.9-0.21.el2, seamonkey-nspr 1.0.9-0.21.el2, seamonkey-js-debugger 1.0.9-0.21.el2, +1 more
    fixed: vendor fix RHSA-2008:0977

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.77% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.