Description
Integer overflow in Mozilla Thunderbird before 1.5.0.10 and SeaMonkey before 1.0.8 allows remote attackers to trigger a buffer overflow and possibly execute arbitrary code via a text/enhanced or text/richtext e-mail message with an extremely long line.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 3.1 | mozilla-firefox | 1.0.4-2sarge17 | DSA-1336-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | thunderbird | 1.5.0.10-1.el5 | RHSA-2007:0108 |
| RHEL 4 | devhelp +1 | 0.10-0.7.el4 | RHSA-2007:0077 |
| RHEL 4 | seamonkey +5 | 1.0.8-0.2.el4 | RHSA-2007:0077 |
| RHEL 4 | thunderbird | 1.5.0.10-0.1.el4 | RHSA-2007:0078 |
| RHEL 3 | seamonkey +9 | 1.0.8-0.2.el3 | RHSA-2007:0077 |
| RHEL 2 | seamonkey +9 | 1.0.8-0.2.el2 | RHSA-2007:0077 |
Advisories 4
- RHSA-2007:0078 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2007:0077 Red Hat Security Advisory: seamonkey security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1336-1 mozilla-firefox Debian Security (DSA / DLA) · Mar 9, 2026
- RHSA-2007:0108 Red Hat Security Advisory: thunderbird security update Red Hat Security Advisories (RHSA) · Nov 22, 2025
References
- RHSA-2007:0078 vendor-advisory
- FEDORA-2007-308 vendor-advisory
- RHSA-2007:0108 vendor-advisory
- oval:org.mitre.oval:def:11313 vdb-entry signature
- 24406 third-party-advisory
- 24457 third-party-advisory
- 33810 vdb-entry
- DSA-1336 vendor-advisory
- FEDORA-2007-309 vendor-advisory
- GLSA-200703-18 vendor-advisory
- mozilla-email-messages-overflow(32810) vdb-entry
- 25588 third-party-advisory
- SSA:2007-066-04 vendor-advisory
- 24456 third-party-advisory
- 24522 third-party-advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=362735
- http://www.mozilla.org/security/announce/2007/mfsa2007-10.html
- 22845 vdb-entry
- SSA:2007-066-05 vendor-advisory
- ADV-2007-0824 vdb-entry