RHSA-2019:1624 - Security Advisory

Topic

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.

Description

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 60.7.2.

Security Fix(es):

• Mozilla: Type confusion in Array.pop (CVE-2019-11707)
• thunderbird: Stack buffer overflow in icalrecur_add_bydayrules in icalrecur.c (CVE-2019-11705)
• Mozilla: Sandbox escape using Prompt:Open (CVE-2019-11708)
• thunderbird: Heap buffer over read in icalparser.c parser_get_next_char (CVE-2019-11703)
• thunderbird: Heap buffer overflow in icalmemory_strdup_and_dequote function in icalvalue.c (CVE-2019-11704)
• thunderbird: Type confusion in icaltimezone_get_vtimezone_properties function in icalproperty.c (CVE-2019-11706)

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

All running instances of Thunderbird must be restarted for the update 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 Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 1720001 - CVE-2019-11703 libical: Heap buffer over read in icalparser.c parser_get_next_char
• BZ - 1720006 - CVE-2019-11704 libical: Heap buffer overflow in icalmemory_strdup_and_dequote function in icalvalue.c
• BZ - 1720008 - CVE-2019-11705 libical: Stack buffer overflow in icalrecur_add_bydayrules in icalrecur.c
• BZ - 1720011 - CVE-2019-11706 libical: Type confusion in icaltimezone_get_vtimezone_properties function in icalproperty.c
• BZ - 1721789 - CVE-2019-11707 Mozilla: Type confusion in Array.pop
• BZ - 1722673 - CVE-2019-11708 Mozilla: Sandbox escape using Prompt:Open

CVEs

• CVE-2019-11703
• CVE-2019-11704
• CVE-2019-11705
• CVE-2019-11706
• CVE-2019-11707
• CVE-2019-11708

References

• https://access.redhat.com/security/updates/classification/#important