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TI-2005-00221 Aliases CVE-2005-0255GHSA-xg8v-4hxj-rcfg

String handling functions in Mozilla 1.7.3, Firefox 1.0, and Thunderbird before 1.0.2…

Priority LOW 30Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
— Not recorded in CVSS 2.0
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Partial
Fix status
Fixed

Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat.

Summary

String handling functions in Mozilla 1.7.3, Firefox 1.0, and Thunderbird before 1.0.2, such as the nsTSubstring_CharT::Replace function, do not properly check the return values of other functions that resize the string, which allows remote attackers to cause a denial of service and possibly execute arbitrary code by forcing an out-of-memory state that causes a reallocation to fail and return a pointer to a fixed address, which leads to heap corruption.

Why it matters now

EPSS 0.04291 91st percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:firefox:1.0:*:*:*:*:*:*:*1.0VulnerableMozilla
cpe:2.3:a:mozilla:mozilla:1.7.3:*:*:*:*:*:*:*1.7.3VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:0.1:*:*:*:*:*:*:*0.1VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:0.2:*:*:*:*:*:*:*0.2VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:0.3:*:*:*:*:*:*:*0.3VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:0.4:*:*:*:*:*:*:*0.4VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:0.5:*:*:*:*:*:*:*0.5VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:0.6:*:*:*:*:*:*:*0.6VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:0.7:*:*:*:*:*:*:*0.7VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:0.8:*:*:*:*:*:*:*0.8VulnerableMozilla
  • cpe:2.3:a:mozilla:firefox:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:mozilla:1.7.3:*:*:*:*:*:*:* Versions 1.7.3 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:0.1:*:*:*:*:*:*:* Versions 0.1 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:0.2:*:*:*:*:*:*:* Versions 0.2 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:0.3:*:*:*:*:*:*:* Versions 0.3 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:0.4:*:*:*:*:*:*:* Versions 0.4 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:0.5:*:*:*:*:*:*:* Versions 0.5 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:0.6:*:*:*:*:*:*:* Versions 0.6 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:0.7:*:*:*:*:*:*:* Versions 0.7 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:0.8:*:*:*:*:*:*:* Versions 0.8 Vulnerable ·Mozilla
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:mozilla:thunderbird:0.9:*:*:*:*:*:*:*0.9VulnerableMozilla
cpe:2.3:a:mozilla:thunderbird:1.0:*:*:*:*:*:*:*1.0VulnerableMozilla
  • cpe:2.3:a:mozilla:thunderbird:0.9:*:*:*:*:*:*:* Versions 0.9 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:thunderbird:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Mozilla

Remediation

Red Hat 2 advisories

  • RHSA-2005:337 Released 2005-03-23 · Red Hat rating Critical
    thunderbird security update
    • Red Hat Enterprise Linux AS version 4 thunderbird-1.0.2-1.4.1, thunderbird-1.0.2-1.4.1.i386, thunderbird-1.0.2-1.4.1.ia64 +1
    • Red Hat Enterprise Linux Desktop version 4 thunderbird-1.0.2-1.4.1, thunderbird-1.0.2-1.4.1.i386
    • Red Hat Enterprise Linux ES version 4 thunderbird-1.0.2-1.4.1, thunderbird-1.0.2-1.4.1.i386, thunderbird-1.0.2-1.4.1.ia64
    • Red Hat Enterprise Linux WS version 4 thunderbird-1.0.2-1.4.1, thunderbird-1.0.2-1.4.1.i386, thunderbird-1.0.2-1.4.1.ia64
  • RHSA-2005:176 Released 2005-03-01 · Red Hat rating Critical
    firefox security update
    • Red Hat Enterprise Linux AS version 4 firefox-1.0.1-1.4.3, firefox-1.0.1-1.4.3.i386, firefox-1.0.1-1.4.3.ia64 +1
    • Red Hat Enterprise Linux Desktop version 4 firefox-1.0.1-1.4.3, firefox-1.0.1-1.4.3.i386
    • Red Hat Enterprise Linux ES version 4 firefox-1.0.1-1.4.3, firefox-1.0.1-1.4.3.i386, firefox-1.0.1-1.4.3.ia64
    • Red Hat Enterprise Linux WS version 4 firefox-1.0.1-1.4.3, firefox-1.0.1-1.4.3.i386, firefox-1.0.1-1.4.3.ia64

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux AS version 4Fixed RHSA-2005:176, RHSA-2005:337
Red Hat Enterprise Linux Desktop version 4Fixed RHSA-2005:176, RHSA-2005:337
Red Hat Enterprise Linux ES version 4Fixed RHSA-2005:176, RHSA-2005:337
Red Hat Enterprise Linux WS version 4Fixed RHSA-2005:176, RHSA-2005:337

Timeline

  1. 2026-10-02 Threatist record created from CVE-2005-0255
  2. 2026-10-03 Alias added: GHSA-xg8v-4hxj-rcfg

References

Patch 6

Advisory 3

Other 2

  • TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
  • TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
  • TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences