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CVE-2018-18498
A potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a raw value is used…
Critical9.8EPSS 4.0%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
A potential vulnerability leading to an integer overflow can occur during buffer size calculations for images when a raw value is used instead of the checked value. This leads to a possible out-of-bounds write. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 4.0% · top 9.4% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- Integer overflow when calculating buffer sizes for images
- CWE-190 (opens in a new tab)All about CWE-190 and its CVEs
- CWE-787 (opens in a new tab)All about CWE-787 and its CVEs
Affected products
- affected unspecified – < 60.4
- affected unspecified – < 60.4
- affected unspecified – < 64
References (15)
- https://www.mozilla.org/security/advisories/mfsa2018-29/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- [debian-lts-announce] 20181213 [SECURITY] [DLA 1605-1] firefox-esr security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- RHSA-2018:3833 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2018:3831 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- DSA-4362 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- GLSA-201903-04 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- USN-3844-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 106168 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2019:0159 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://www.mozilla.org/security/advisories/mfsa2018-31/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://www.mozilla.org/security/advisories/mfsa2018-30/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-4354 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- USN-3868-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://bugzilla.mozilla.org/show_bug.cgi?id=1500011 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2019:0160 (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)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-18498)Record last updated .