What’s Vulnerable › Vulnerabilities

CVE-2017-5428

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-06-11 · updated 2026-06-17
• Weakness: CWE-190

Description

An integer overflow in "createImageBitmap()" was reported through the Pwn2Own contest. The fix for this vulnerability disables the experimental extensions to the "createImageBitmap" API. This function runs in the content sandbox, requiring a second vulnerability to compromise a user's computer. This vulnerability affects Firefox ESR < 52.0.1 and Firefox < 52.0.1.

Affected products

• Mozilla Firefox: before 52.0.1 — fixed in 52.0.1
• Mozilla Firefox ESR: before 52.0.1 — fixed in 52.0.1
• Red Hat Enterprise Linux: 7.0
• RedHat Enterprise Linux Desktop: 7.0
• RedHat Enterprise Linux Server: 7.0
• RedHat Enterprise Linux Server Aus: 7.3, 7.4
• RedHat Enterprise Linux Server Eus: 7.3, 7.4, 7.5
• RedHat Enterprise Linux Workstation: 7.0

How to fix

Upgrade to a fixed version: Mozilla Firefox 52.0.1; Mozilla Firefox ESR 52.0.1. Check the vendor advisory for mitigations.

References

• http://rhn.redhat.com/errata/RHSA-2017-0558.html
• http://www.securityfocus.com/bid/96959
• http://www.securitytracker.com/id/1038060
• https://bugzilla.mozilla.org/show_bug.cgi?id=1348168
• https://www.mozilla.org/security/advisories/mfsa2017-08/
• http://rhn.redhat.com/errata/RHSA-2017-0558.html
• http://www.securityfocus.com/bid/96959
• http://www.securitytracker.com/id/1038060
• https://bugzilla.mozilla.org/show_bug.cgi?id=1348168
• https://www.mozilla.org/security/advisories/mfsa2017-08/

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