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AUSCERT External Security Bulletin Redistribution
ESB-2019.0276
Firefox vulnerabilities
31 January 2019
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AusCERT Security Bulletin Summary
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Product: firefox
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction
Increased Privileges -- Remote with User Interaction
Access Privileged Data -- Remote with User Interaction
Denial of Service -- Remote with User Interaction
Provide Misleading Information -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2018-18506 CVE-2018-18505 CVE-2018-18504
CVE-2018-18503 CVE-2018-18502 CVE-2018-18501
CVE-2018-18500
Reference: ASB-2019.0042
ESB-2019.0267
ESB-2019.0268
ESB-2019.0272
Original Bulletin:
http://www.ubuntu.com/usn/usn-3874-1
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USN-3874-1: Firefox vulnerabilities
30 January 2019
firefox vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
Ubuntu 18.10
Ubuntu 18.04 LTS
Ubuntu 16.04 LTS
Ubuntu 14.04 LTS
Summary
Firefox could be made to crash or run programs as your login if it opened a
malicious website.
Software Description
firefox - Mozilla Open Source web browser
Details
Multiple security issues were discovered in Firefox. If a user were tricked in
to opening a specially crafted website, an attacker could potentially exploit
these to cause a denial of service, gain additional privileges by escaping the
sandbox, or execute arbitrary code. (CVE-2018-18500, CVE-2018-18501,
CVE-2018-18502, CVE-2018-18503, CVE-2018-18504, CVE-2018-18505)
It was discovered that Firefox allowed PAC files to specify that requests to
localhost are sent through the proxy to another server. If proxy auto-detection
is enabled, an attacker could potentially exploit this to conduct attacks on
local services and tools. (CVE-2018-18506)
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.10
firefox - 65.0+build2-0ubuntu0.18.10.1
Ubuntu 18.04 LTS
firefox - 65.0+build2-0ubuntu0.18.04.1
Ubuntu 16.04 LTS
firefox - 65.0+build2-0ubuntu0.16.04.1
Ubuntu 14.04 LTS
firefox - 65.0+build2-0ubuntu0.14.04.1
To update your system, please follow these instructions:
https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to restart Firefox to make all the
necessary changes.
References
CVE-2018-18500
CVE-2018-18501
CVE-2018-18502
CVE-2018-18503
CVE-2018-18504
CVE-2018-18505
CVE-2018-18506
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