Out-of-Bounds Affecting firefox package, versions <64.0-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published13 Dec 2018
- disclosed28 Feb 2019
Introduced: 13 Dec 2018
CVE-2018-18493 (opens in a new tab)How to fix?
Upgrade Debian:unstable firefox to version 64.0-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.
References
- https://security-tracker.debian.org/tracker/CVE-2018-18493
- https://www.debian.org/security/2018/dsa-4354
- https://www.debian.org/security/2019/dsa-4362
- https://lists.debian.org/debian-lts-announce/2018/12/msg00002.html
- https://security.gentoo.org/glsa/201903-04
- https://www.mozilla.org/security/advisories/mfsa2018-29/
- https://www.mozilla.org/security/advisories/mfsa2018-30/
- https://www.mozilla.org/security/advisories/mfsa2018-31/
- https://bugzilla.mozilla.org/show_bug.cgi?id=1504452
- https://access.redhat.com/errata/RHSA-2018:3831
- https://access.redhat.com/errata/RHSA-2018:3833
- https://access.redhat.com/errata/RHSA-2019:0159
- https://access.redhat.com/errata/RHSA-2019:0160
- http://www.securityfocus.com/bid/106168
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-18493
- https://usn.ubuntu.com/3844-1/
- https://usn.ubuntu.com/3868-1/