Test ID:	1.3.6.1.4.1.25623.1.2.1.2020.20
Category:	General
Title:	Mozilla Firefox Security Advisory (MFSA2020-20) - Linux
Summary:	This host is missing a security update for Mozilla Firefox.
Description:	Summary: This host is missing a security update for Mozilla Firefox. Vulnerability Insight: CVE-2020-12399: Timing attack on DSA signatures in NSS library NSS has shown timing differences when performing DSA signatures, which was exploitable and could eventually leak private keys. CVE-2020-12405: Use-after-free in SharedWorkerService When browsing a malicious page, a race condition in our SharedWorkerService could occur and lead to a potentially exploitable crash. CVE-2020-12406: JavaScript type confusion with NativeTypes Mozilla Developer Iain Ireland discovered a missing type check during unboxed objects removal, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. CVE-2020-12407: WebRender leaking GPU memory when using border-image CSS directive Mozilla Developer Nicolas Silva found that when using WebRender, Firefox would under certain conditions leak arbitrary GPU memory to the visible screen. The leaked memory content was visible to the user, but not observable from web content. CVE-2020-12408: URL spoofing when using IP addresses When browsing a document hosted on an IP address, an attacker could insert certain characters to flip domain and path information in the address bar. CVE-2020-12409: URL spoofing with unicode characters When using certain blank characters in a URL, they where incorrectly rendered as spaces instead of an encoded URL. CVE-2020-12410: Memory safety bugs fixed in Firefox 77 and Firefox ESR 68.9 Mozilla developers Tom Tung and Karl Tomlinson reported memory safety bugs present in Firefox 76 and Firefox ESR 68.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. CVE-2020-12411: Memory safety bugs fixed in Firefox 77 Mozilla developers :Gijs (he/him), Randell Jesup reported memory safety bugs present in Firefox 76. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. Affected Software/OS: Firefox version(s) below 77. Solution: The vendor has released an update. Please see the reference(s) for more information. CVSS Score: 9.3 CVSS Vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2020-12399 Debian Security Information: DSA-4726 (Google Search) https://www.debian.org/security/2020/dsa-4726 https://security.gentoo.org/glsa/202007-49 https://bugzilla.mozilla.org/show_bug.cgi?id=1631576 https://www.mozilla.org/security/advisories/mfsa2020-20/ https://www.mozilla.org/security/advisories/mfsa2020-21/ https://www.mozilla.org/security/advisories/mfsa2020-22/ https://lists.debian.org/debian-lts-announce/2020/09/msg00029.html https://usn.ubuntu.com/4421-1/ Common Vulnerability Exposure (CVE) ID: CVE-2020-12405 https://bugzilla.mozilla.org/show_bug.cgi?id=1631618 Common Vulnerability Exposure (CVE) ID: CVE-2020-12406 https://bugzilla.mozilla.org/show_bug.cgi?id=1639590 Common Vulnerability Exposure (CVE) ID: CVE-2020-12407 https://bugzilla.mozilla.org/show_bug.cgi?id=1637112 Common Vulnerability Exposure (CVE) ID: CVE-2020-12408 https://bugzilla.mozilla.org/show_bug.cgi?id=1623888 Common Vulnerability Exposure (CVE) ID: CVE-2020-12409 https://bugzilla.mozilla.org/show_bug.cgi?id=1629506 Common Vulnerability Exposure (CVE) ID: CVE-2020-12410 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1619305%2C1632717 Common Vulnerability Exposure (CVE) ID: CVE-2020-12411 https://bugzilla.mozilla.org/buglist.cgi?bug_id=1620972%2C1625333
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