5 - RHSA-2019:3756

Problem Description:

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

Red Hat Product Security has rated this update as having a security impact of Important. 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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64

3. Description:

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 68.2.0.

Security Fix(es):

* Mozilla: Memory safety bugs fixed in Firefox 70 and Firefox ESR 68.2 (CVE-2019-11764)

* Mozilla: Use-after-free when creating index updates in IndexedDB (CVE-2019-11757)

* Mozilla: Potentially exploitable crash due to 360 Total Security (CVE-2019-11758)

* Mozilla: Stack buffer overflow in HKDF output (CVE-2019-11759)

* Mozilla: Stack buffer overflow in WebRTC networking (CVE-2019-11760)

* Mozilla: Unintended access to a privileged JSONView object (CVE-2019-11761)

* Mozilla: document.domain-based origin isolation has same-origin-property violation (CVE-2019-11762)

* Mozilla: Incorrect HTML parsing results in XSS bypass technique (CVE-2019-11763)

* expat: heap-based buffer over-read via crafted XML input (CVE-2019-15903)

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.

4. 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

All running instances of Thunderbird must be restarted for the update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1752592 - CVE-2019-15903 expat: heap-based buffer over-read via crafted XML input 1764438 - CVE-2019-11757 Mozilla: Use-after-free when creating index updates in IndexedDB 1764439 - CVE-2019-11758 Mozilla: Potentially exploitable crash due to 360 Total Security 1764440 - CVE-2019-11759 Mozilla: Stack buffer overflow in HKDF output 1764441 - CVE-2019-11760 Mozilla: Stack buffer overflow in WebRTC networking 1764442 - CVE-2019-11761 Mozilla: Unintended access to a privileged JSONView object 1764443 - CVE-2019-11762 Mozilla: document.domain-based origin isolation has same-origin-property violation 1764444 - CVE-2019-11763 Mozilla: Incorrect HTML parsing results in XSS bypass technique 1764446 - CVE-2019-11764 Mozilla: Memory safety bugs fixed in Firefox 70 and Firefox ESR 68.2