RHSA-2018:3831 - Security Advisory

Topic

An update for firefox is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 60.4.0 ESR.

Security Fix(es):

• Mozilla: Memory safety bugs fixed in Firefox 64 and Firefox ESR 60.4 (CVE-2018-12405)
• Mozilla: Memory corruption in Angle (CVE-2018-17466)
• Mozilla: Use-after-free with select element (CVE-2018-18492)
• Mozilla: Buffer overflow in accelerated 2D canvas with Skia (CVE-2018-18493)
• Mozilla: Same-origin policy violation using location attribute and performance.getEntries to steal cross-origin URLs (CVE-2018-18494)
• Mozilla: Integer overflow when calculating buffer sizes for images (CVE-2018-18498)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Christian Holler, Diego Calleja, Andrew McCreight, Jon Coppeard, Natalia Csoregi, Nicolas B. Pierron, Tyson Smith, Nils, Atte Kettunen, James Lee of Kryptos Logic, and r as the original reporters.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the update, Firefox must be restarted for the changes to take effect.

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 1640102 - CVE-2018-17466 chromium-browser, firefox: Memory corruption in Angle
• BZ - 1658397 - CVE-2018-12405 Mozilla: Memory safety bugs fixed in Firefox 64 and Firefox ESR 60.4
• BZ - 1658399 - CVE-2018-18492 Mozilla: Use-after-free with select element
• BZ - 1658400 - CVE-2018-18493 Mozilla: Buffer overflow in accelerated 2D canvas with Skia
• BZ - 1658401 - CVE-2018-18494 Mozilla: Same-origin policy violation using location attribute and performance.getEntries to steal cross-origin URLs
• BZ - 1658402 - CVE-2018-18498 Mozilla: Integer overflow when calculating buffer sizes for images

CVEs

• CVE-2018-12405
• CVE-2018-17466
• CVE-2018-18492
• CVE-2018-18493
• CVE-2018-18494
• CVE-2018-18498

References

• https://access.redhat.com/security/updates/classification/#critical
• https://www.mozilla.org/en-US/security/advisories/mfsa2018-30/