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.

This update upgrades Firefox to version 52.7.0 ESR.

Security Fix(es):

• Mozilla: Memory safety bugs fixed in Firefox 59 and Firefox ESR 52.7 (MFSA 2018-07) (CVE-2018-5125)
• Mozilla: Buffer overflow manipulating SVG animatedPathSegList (MFSA 2018-07) (CVE-2018-5127)
• Mozilla: Out-of-bounds write with malformed IPC messages (MFSA 2018-07) (CVE-2018-5129)
• Mozilla: Mismatched RTP payload type can trigger memory corruption (MFSA 2018-07) (CVE-2018-5130)
• Mozilla: Fetch API improperly returns cached copies of no-store/no-cache resources (MFSA 2018-07) (CVE-2018-5131)
• Mozilla: Integer overflow during Unicode conversion (MFSA 2018-07) (CVE-2018-5144)
• Mozilla: Memory safety bugs fixed in Firefox ESR 52.7 (MFSA 2018-07) (CVE-2018-5145)

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

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

Fixes

• BZ - 1555127 - CVE-2018-5125 Mozilla: Memory safety bugs fixed in Firefox 59 and Firefox ESR 52.7 (MFSA 2018-07)
• BZ - 1555128 - CVE-2018-5127 Mozilla: Buffer overflow manipulating SVG animatedPathSegList (MFSA 2018-07)
• BZ - 1555129 - CVE-2018-5129 Mozilla: Out-of-bounds write with malformed IPC messages (MFSA 2018-07)
• BZ - 1555130 - CVE-2018-5130 Mozilla: Mismatched RTP payload type can trigger memory corruption (MFSA 2018-07)
• BZ - 1555131 - CVE-2018-5131 Mozilla: Fetch API improperly returns cached copies of no-store/no-cache resources (MFSA 2018-07)
• BZ - 1555132 - CVE-2018-5144 Mozilla: Integer overflow during Unicode conversion (MFSA 2018-07)
• BZ - 1555133 - CVE-2018-5145 Mozilla: Memory safety bugs fixed in Firefox ESR 52.7 (MFSA 2018-07)

CVEs

• CVE-2018-5125
• CVE-2018-5127
• CVE-2018-5129
• CVE-2018-5130
• CVE-2018-5131
• CVE-2018-5144
• CVE-2018-5145

References

• https://access.redhat.com/security/updates/classification/#critical
• https://www.mozilla.org/en-US/security/advisories/mfsa2018-07/