Arch Linux Security Advisory ASA-202003-11

Severity: Critical
Date : 2020-03-16
CVE-ID : CVE-2019-20503 CVE-2020-6805 CVE-2020-6806 CVE-2020-6807
CVE-2020-6811 CVE-2020-6812 CVE-2020-6814
Package : thunderbird
Type : multiple issues
Remote : Yes
Link : https://security.archlinux.org/AVG-1115

Summary

The package thunderbird before version 68.6.0-1 is vulnerable to
multiple issues including arbitrary code execution, arbitrary command
execution and information disclosure.

Resolution

Upgrade to 68.6.0-1.

pacman -Syu “thunderbird>=68.6.0-1”

The problems have been fixed upstream in version 68.6.0.

Workaround

None.

Description

• CVE-2019-20503 (information disclosure)

An out-of-bounds read has been found in Firefox before 74 and
Thunderbird before 68.6. The inputs to sctp_load_addresses_from_init
are verified by sctp_arethere_unrecognized_parameters; however, the two
functions handled parameter bounds differently, resulting in out of
bounds reads when parameters are partially outside a chunk.

• CVE-2020-6805 (arbitrary code execution)

A use-after-free issue has been found in Firefox before 74 and
Thunderbird before 68.6. When removing data about an origin whose tab
was recently closed, a use-after-free could occur in the Quota manager,
resulting in a potentially exploitable crash.

• CVE-2020-6806 (arbitrary code execution)

A state confusion issue has been found in Firefox before 74 and
Thunderbird before 68.6, in BodyStream::OnInputStreamReady. By
carefully crafting promise resolutions, it was possible to cause an
out-of-bounds read off the end of an array resized during script
execution. This could have led to memory corruption and a potentially
exploitable crash.

• CVE-2020-6807 (arbitrary code execution)

A use-after-free issue has been found in Firefox before 74 and
Thunderbird before 68.6, in cubeb during stream destruction. When a
device was changed while a stream was about to be destroyed, the
stream-reinit task may have been executed after the stream was
destroyed, causing a use-after-free and a potentially exploitable
crash.

• CVE-2020-6811 (arbitrary command execution)

A security issue has been found in Firefox before 74 and Thunderbird
before 68.6, where the ‘Copy as cURL’ feature of Devtools’ network tab
did not properly escape the HTTP method of a request, which can be
controlled by the website. If a user used the ‘Copy as Curl’ feature
and pasted the command into a terminal, it could have resulted in
command injection and arbitrary command execution.

• CVE-2020-6812 (information disclosure)

An information disclosure issue has been found in Firefox before 74 and
Thunderbird before 68.6. The first time AirPods are connected to an
iPhone, they become named after the user’s name by default (e.g. Jane
Doe’s AirPods.) Websites with camera or microphone permission are able
to enumerate device names, disclosing the user’s name. To resolve this
issue, Firefox added a special case that renames devices containing the
substring ‘AirPods’ to simply ‘AirPods’.

• CVE-2020-6814 (arbitrary code execution)

Several memory safety and script safety bugs have been found in Firefox
before 74, Firefox ESR before 68.6 and Thunderbird before 68.6. Some of
these bugs showed evidence of memory corruption or escalation of
privilege and Mozilla presumes that with enough effort some of these
could have been exploited to run arbitrary code.

Impact

A remote attacker can access sensitive information and execute
arbitrary commands and code on the affected host.

References

https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/
https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2019-20503
https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2019-20503
https://bugzilla.mozilla.org/show_bug.cgi?id=1613765
https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6805
https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6805
https://bugzilla.mozilla.org/show_bug.cgi?id=1610880
https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6806
https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6806
https://bugzilla.mozilla.org/show_bug.cgi?id=1612308
https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6807
https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6807
https://bugzilla.mozilla.org/show_bug.cgi?id=1614971
https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6811
https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6811
https://bugzilla.mozilla.org/show_bug.cgi?id=1607742
https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6812
https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6812
https://bugzilla.mozilla.org/show_bug.cgi?id=1616661
https://www.mozilla.org/en-US/security/advisories/mfsa2020-08/#CVE-2020-6814
https://www.mozilla.org/en-US/security/advisories/mfsa2020-10/#CVE-2020-6814
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1592078%2C1604847%2C1608256%2C1612636%2C1614339
https://security.archlinux.org/CVE-2019-20503
https://security.archlinux.org/CVE-2020-6805
https://security.archlinux.org/CVE-2020-6806
https://security.archlinux.org/CVE-2020-6807
https://security.archlinux.org/CVE-2020-6811
https://security.archlinux.org/CVE-2020-6812
https://security.archlinux.org/CVE-2020-6814