Vulnerability Details

Mozilla Firefox Security Advisory (MFSA2019-01) - Linux

Published: 2021-11-08 15:21:25
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:C/I:C/A:C

Summary:
This host is missing a security update for Mozilla Firefox.

Detection Method:
Checks if a vulnerable Linux Distribution Package version is present on the target host.

Technical Details:
CVE-2018-18500: Use-after-free parsing HTML5 stream A use-after-free vulnerability can occur while parsing an HTML5 stream in concert with custom HTML elements. This results in the stream parser object being freed while still in use, leading to a potentially exploitable crash. CVE-2018-18504: Memory corruption and out-of-bounds read of texture client buffer A crash and out-of-bounds read can occur when the buffer of a texture client is freed while it is still in use during graphic operations. This results in a potentially exploitable crash and the possibility of reading from the memory of the freed buffers. CVE-2018-18505: Privilege escalation through IPC channel messages An earlier fix for an Inter-process Communication (IPC) vulnerability, CVE-2011-3079, added authentication to communication between IPC endpoints and server parents during IPC process creation. This authentication is insufficient for channels created after the IPC process is started, leading to the authentication not being correctly applied to later channels. This could allow for a sandbox escape through IPC channels due to lack of message validation in the listener process. CVE-2018-18503: Memory corruption with Audio Buffer When JavaScript is used to create and manipulate an audio buffer, a potentially exploitable crash may occur because of a compartment mismatch in some situations. CVE-2018-18506: Proxy Auto-Configuration file can define localhost access to be proxied When proxy auto-detection is enabled, if a web server serves a Proxy Auto-Configuration (PAC) file or if a PAC file is loaded locally, this PAC file can specify that requests to the localhost are to be sent through the proxy to another server. This behavior is disallowed by default when a proxy is manually configured, but when enabled could allow for attacks on services and tools that bind to the localhost for networked behavior if they are accessed through browsing. CVE-2018-18502: Memory safety bugs fixed in Firefox 65 Mozilla developers and community members Arthur Iakab, Christoph Diehl, Christian Holler, Kalel, Emilio Cobos Alvarez, Cristina Coroiu, Noemi Erli, Natalia Csoregi, Julian Seward, Gary Kwong, Tyson Smith, Yaron Tausky, and Ronald Crane reported memory safety bugs present in Firefox 64. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. CVE-2018-18501: Memory safety bugs fixed in Firefox 65 and Firefox ESR 60.5 Mozilla developers and community members Alex Gaynor, Christoph Diehl, Steven Crane, Jason Kratzer, Gary Kwong, and Christian Holler reported memory safety bugs present in Firefox 64 and Firefox ESR 60.4. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code.

Affected Versions:
Firefox version(s) below 65.

Recommendations:
The vendor has released an update. Please see the reference(s) for more information.

Solution Type:
Vendor Patch

Detection Type:
Executable Unreliable

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2011-3079
https://nvd.nist.gov/vuln/detail/CVE-2018-18500
https://nvd.nist.gov/vuln/detail/CVE-2018-18501
https://nvd.nist.gov/vuln/detail/CVE-2018-18502
https://nvd.nist.gov/vuln/detail/CVE-2018-18503
https://nvd.nist.gov/vuln/detail/CVE-2018-18504
https://nvd.nist.gov/vuln/detail/CVE-2018-18505
https://nvd.nist.gov/vuln/detail/CVE-2018-18506

References:


https://www.mozilla.org/en-US/security/advisories/mfsa2019-01/
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1499426%2C1480090%2C1472990%2C1514762%2C1501482%2C1505887%2C1508102%2C1508618%2C1511580%2C1493497%2C1510145%2C1516289%2C1506798%2C1512758
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1512450%2C1517542%2C1513201%2C1460619%2C1502871%2C1516738%2C1516514
https://bugzilla.mozilla.org/show_bug.cgi?id=1087565
https://bugzilla.mozilla.org/show_bug.cgi?id=1496413
https://bugzilla.mozilla.org/show_bug.cgi?id=1497749
https://bugzilla.mozilla.org/show_bug.cgi?id=1503393
https://bugzilla.mozilla.org/show_bug.cgi?id=1509442
https://bugzilla.mozilla.org/show_bug.cgi?id=1510114

Severity
High
CVSS Score
10.0
Published
2021-11-08
Modified
2021-11-15
Category
General

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