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CVE-2018-18493
A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the…
Critical9.8EPSS 5.0%
- Published
- Updated
- Reserved
- Assigned by
- mozilla
Description
A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. 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)
- 5.0% · top 7.8% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- Buffer overflow in accelerated 2D canvas with Skia
- CWE-119 (opens in a new tab)All about CWE-119 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=1504452 (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)
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[](https://trackcve.app/cve/CVE-2018-18493)Record last updated .