RHSA-2017:0459 - Security Advisory

Topic

An update for firefox is now available for Red Hat Enterprise Linux 5 and 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.

This update upgrades Firefox to version 45.8.0 ESR.

Security Fix(es):

• Multiple flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. (CVE-2017-5398, CVE-2017-5400, CVE-2017-5401, CVE-2017-5402, CVE-2017-5404, CVE-2017-5407, CVE-2017-5408, CVE-2017-5410, CVE-2017-5405)

Red Hat would like to thank the Mozilla project for reporting these issues. Upstream acknowledges Nils, Jerri Rice, Rh0, Anton Eliasson, David Kohlbrenner, Ivan Fratric of Google Project Zero, Anonymous, Eric Lawrence of Chrome Security, Boris Zbarsky, Christian Holler, Honza Bambas, Jon Coppeard, Randell Jesup, André Bargull, Kan-Ru Chen, and Nathan Froyd 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 5 x86_64
• Red Hat Enterprise Linux Server 5 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 Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• 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

Fixes

• BZ - 1429778 - CVE-2017-5400 Mozilla: asm.js JIT-spray bypass of ASLR and DEP (MFSA 2017-06)
• BZ - 1429779 - CVE-2017-5401 Mozilla: Memory Corruption when handling ErrorResult (MFSA 2017-06)
• BZ - 1429780 - CVE-2017-5402 Mozilla: Use-after-free working with events in FontFace objects (MFSA 2017-06)
• BZ - 1429781 - CVE-2017-5404 Mozilla: Use-after-free working with ranges in selections (MFSA 2017-06)
• BZ - 1429782 - CVE-2017-5407 Mozilla: Pixel and history stealing via floating-point timing side channel with SVG filters (MFSA 2017-06)
• BZ - 1429783 - CVE-2017-5410 Mozilla: Memory corruption during JavaScript garbage collection incremental sweeping (MFSA 2017-06)
• BZ - 1429784 - CVE-2017-5408 Mozilla: Cross-origin reading of video captions in violation of CORS (MFSA 2017-06)
• BZ - 1429785 - CVE-2017-5405 Mozilla: FTP response codes can cause use of uninitialized values for ports (MFSA 2017-06)
• BZ - 1429786 - CVE-2017-5398 Mozilla: Memory safety bugs fixed in Firefox 52 and Firefox ESR 45.8 (MFSA 2017-06)

CVEs

• CVE-2017-5398
• CVE-2017-5400
• CVE-2017-5401
• CVE-2017-5402
• CVE-2017-5404
• CVE-2017-5405
• CVE-2017-5407
• CVE-2017-5408
• CVE-2017-5410

References

• https://access.redhat.com/security/updates/classification/#critical
• https://www.mozilla.org/en-US/security/advisories/mfsa2017-06