CVE-2018-18493
UnknownEPSS 4.98%
Last modified
CVE-2018-18493 is a vulnerability of currently unknown severity. 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. EPSS estimates a 4.98% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 60.4.0 |
| Mozilla | Firefox | < 64.0 |
| Mozilla | Thunderbird | < 60.4.0 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 18.04 |
| Canonical | Ubuntu Linux | 18.10 |
| Redhat | Enterprise Linux Desktop | 6.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 6.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 7.6 |
| Redhat | Enterprise Linux Server Eus | 7.6 |
| Redhat | Enterprise Linux Server Tus | 7.6 |
| Redhat | Enterprise Linux Workstation | 6.0 |
| Redhat | Enterprise Linux Workstation | 7.0 |
References
- http://www.securityfocus.com/bid/106168Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3831Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3833Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0159Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0160Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1504452Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/12/msg00002.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-04Third Party Advisory
- https://usn.ubuntu.com/3844-1/Third Party Advisory
- https://usn.ubuntu.com/3868-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4354Third Party Advisory
- https://www.debian.org/security/2019/dsa-4362Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-29/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-30/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-31/Vendor Advisory
- http://www.securityfocus.com/bid/106168Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:3831Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3833Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0159Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0160Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1504452Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/12/msg00002.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201903-04Third Party Advisory
- https://usn.ubuntu.com/3844-1/Third Party Advisory
- https://usn.ubuntu.com/3868-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4354Third Party Advisory
- https://www.debian.org/security/2019/dsa-4362Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-29/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-30/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-31/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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 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.
How severe is CVE-2018-18493?
Severity scoring for CVE-2018-18493 is pending analysis. The EPSS model estimates a 4.98% probability of exploitation in the next 30 days.
How do I fix CVE-2018-18493?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2018-18493?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST