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CVE-2005-0255
String handling functions in Mozilla 1.7.3, Firefox 1.0, and Thunderbird before 1.0.2, such as the nsTSubstring_CharT::Replace function,…
Medium5.0EPSS 4.3%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 4.3% · top 8.9% of all CVEs (3 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (13)
- 12659 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- SUSE-SA:2005:016 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 19823 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- oval:org.mitre.oval:def:9111 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://www.mozilla.org/security/announce/mfsa2005-18.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- oval:org.mitre.oval:def:100040 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 20050228 Mozilla Firefox and Mozilla Browser Out Of Memory Heap Corruption Design Error (opens in a new tab)third-party-advisoryx_refsource_IDEFENSEx_transferred
- RHSA-2005:176 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- GLSA-200503-30 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- RHSA-2005:277 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- GLSA-200503-10 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- SUSE-SA:2006:022 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- RHSA-2005:337 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_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)
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[](https://trackcve.app/cve/CVE-2005-0255)Record last updated .