Synopsis

Critical: firefox security update

Type/Severity

Security Advisory: Critical

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 68.4.1 ESR.

Security Fix(es):

• Mozilla: IonMonkey type confusion with StoreElementHole and FallibleStoreElement (CVE-2019-17026)
  
• Mozilla: Bypass of @namespace CSS sanitization during pasting (CVE-2019-17016)
  
• Mozilla: Type Confusion in XPCVariant.cpp (CVE-2019-17017)
  
• Mozilla: Memory safety bugs fixed in Firefox 72 and Firefox ESR 68.4 (CVE-2019-17024)
  
• Mozilla: CSS sanitization does not escape HTML tags (CVE-2019-17022)
  

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 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

Fixes

• BZ - 1788723 - CVE-2019-17016 Mozilla: Bypass of @namespace CSS sanitization during pasting
• BZ - 1788724 - CVE-2019-17017 Mozilla: Type Confusion in XPCVariant.cpp
• BZ - 1788726 - CVE-2019-17022 Mozilla: CSS sanitization does not escape HTML tags
• BZ - 1788727 - CVE-2019-17024 Mozilla: Memory safety bugs fixed in Firefox 72 and Firefox ESR 68.4
• BZ - 1789214 - CVE-2019-17026 Mozilla: IonMonkey type confusion with StoreElementHole and FallibleStoreElement

CVEs

• CVE-2019-17016
• CVE-2019-17017
• CVE-2019-17022
• CVE-2019-17024
• CVE-2019-17026

References

• https://access.redhat.com/security/updates/classification/#critical
• https://www.mozilla.org/en-US/security/advisories/mfsa2020-02/

Red Hat Enterprise Linux Server 6

SRPM
firefox-68.4.1-1.el6_10.src.rpm	SHA-256: ec953313c9ffec151f3778fe3541094d6da71db1ea6833cf3162d0055b70c021
x86_64
firefox-68.4.1-1.el6_10.i686.rpm	SHA-256: c9d2270f9906381c17dc91e6fd0d1eb1be6f89f0e795e0a033e8138836190924
firefox-68.4.1-1.el6_10.x86_64.rpm	SHA-256: 266e710bbb7c1567fad2b185ca710ebccb043e80d839b1d4e71d4b06db8a25d4
firefox-debuginfo-68.4.1-1.el6_10.i686.rpm	SHA-256: 16318ba98bcad62514b246f08e2c5c5bf7b8defef0b987d63b6029b487d05e0f
firefox-debuginfo-68.4.1-1.el6_10.x86_64.rpm	SHA-256: 66e1822ab66962e6666d88f94316d4ecf0235f3c8685f7c90c9050b016b0b6fb
i386
firefox-68.4.1-1.el6_10.i686.rpm	SHA-256: c9d2270f9906381c17dc91e6fd0d1eb1be6f89f0e795e0a033e8138836190924
firefox-debuginfo-68.4.1-1.el6_10.i686.rpm	SHA-256: 16318ba98bcad62514b246f08e2c5c5bf7b8defef0b987d63b6029b487d05e0f

Red Hat Enterprise Linux Workstation 6

SRPM
firefox-68.4.1-1.el6_10.src.rpm	SHA-256: ec953313c9ffec151f3778fe3541094d6da71db1ea6833cf3162d0055b70c021
x86_64
firefox-68.4.1-1.el6_10.i686.rpm	SHA-256: c9d2270f9906381c17dc91e6fd0d1eb1be6f89f0e795e0a033e8138836190924
firefox-68.4.1-1.el6_10.x86_64.rpm	SHA-256: 266e710bbb7c1567fad2b185ca710ebccb043e80d839b1d4e71d4b06db8a25d4
firefox-debuginfo-68.4.1-1.el6_10.i686.rpm	SHA-256: 16318ba98bcad62514b246f08e2c5c5bf7b8defef0b987d63b6029b487d05e0f
firefox-debuginfo-68.4.1-1.el6_10.x86_64.rpm	SHA-256: 66e1822ab66962e6666d88f94316d4ecf0235f3c8685f7c90c9050b016b0b6fb
i386
firefox-68.4.1-1.el6_10.i686.rpm	SHA-256: c9d2270f9906381c17dc91e6fd0d1eb1be6f89f0e795e0a033e8138836190924
firefox-debuginfo-68.4.1-1.el6_10.i686.rpm	SHA-256: 16318ba98bcad62514b246f08e2c5c5bf7b8defef0b987d63b6029b487d05e0f

Red Hat Enterprise Linux Desktop 6

SRPM
firefox-68.4.1-1.el6_10.src.rpm	SHA-256: ec953313c9ffec151f3778fe3541094d6da71db1ea6833cf3162d0055b70c021
x86_64
firefox-68.4.1-1.el6_10.i686.rpm	SHA-256: c9d2270f9906381c17dc91e6fd0d1eb1be6f89f0e795e0a033e8138836190924
firefox-68.4.1-1.el6_10.x86_64.rpm	SHA-256: 266e710bbb7c1567fad2b185ca710ebccb043e80d839b1d4e71d4b06db8a25d4
firefox-debuginfo-68.4.1-1.el6_10.i686.rpm	SHA-256: 16318ba98bcad62514b246f08e2c5c5bf7b8defef0b987d63b6029b487d05e0f
firefox-debuginfo-68.4.1-1.el6_10.x86_64.rpm	SHA-256: 66e1822ab66962e6666d88f94316d4ecf0235f3c8685f7c90c9050b016b0b6fb
i386
firefox-68.4.1-1.el6_10.i686.rpm	SHA-256: c9d2270f9906381c17dc91e6fd0d1eb1be6f89f0e795e0a033e8138836190924
firefox-debuginfo-68.4.1-1.el6_10.i686.rpm	SHA-256: 16318ba98bcad62514b246f08e2c5c5bf7b8defef0b987d63b6029b487d05e0f

Red Hat Enterprise Linux for IBM z Systems 6

SRPM
firefox-68.4.1-1.el6_10.src.rpm	SHA-256: ec953313c9ffec151f3778fe3541094d6da71db1ea6833cf3162d0055b70c021
s390x
firefox-68.4.1-1.el6_10.s390x.rpm	SHA-256: 73a04c65bf95fa1c4f8eca78ffa55b072169418f7df73a1c2a6cf80d80b88c74
firefox-debuginfo-68.4.1-1.el6_10.s390x.rpm	SHA-256: 6210693f9275633f72f67e2b92aaa6323f00ec67d2aac167c930e0fd78684114

Red Hat Enterprise Linux for Power, big endian 6

SRPM
firefox-68.4.1-1.el6_10.src.rpm	SHA-256: ec953313c9ffec151f3778fe3541094d6da71db1ea6833cf3162d0055b70c021
ppc64
firefox-68.4.1-1.el6_10.ppc64.rpm	SHA-256: 25ebc09cae15fad669d68fd7fe33cd2b4118c14ad16b56dc8350fd185154b487
firefox-debuginfo-68.4.1-1.el6_10.ppc64.rpm	SHA-256: 07a28dccdfa6ffaa2199cce0c89d7f94b268bb8f63f21b014c4696469cef075e

Red Hat Enterprise Linux for Scientific Computing 6

SRPM
firefox-68.4.1-1.el6_10.src.rpm	SHA-256: ec953313c9ffec151f3778fe3541094d6da71db1ea6833cf3162d0055b70c021
x86_64
firefox-68.4.1-1.el6_10.i686.rpm	SHA-256: c9d2270f9906381c17dc91e6fd0d1eb1be6f89f0e795e0a033e8138836190924
firefox-68.4.1-1.el6_10.x86_64.rpm	SHA-256: 266e710bbb7c1567fad2b185ca710ebccb043e80d839b1d4e71d4b06db8a25d4
firefox-debuginfo-68.4.1-1.el6_10.i686.rpm	SHA-256: 16318ba98bcad62514b246f08e2c5c5bf7b8defef0b987d63b6029b487d05e0f
firefox-debuginfo-68.4.1-1.el6_10.x86_64.rpm	SHA-256: 66e1822ab66962e6666d88f94316d4ecf0235f3c8685f7c90c9050b016b0b6fb