Updated firefox packages that fix several security bugs are now available for Red Hat Enterprise Linux 4. 

This update has been rated as having critical security impact by the Red Hat Security Response Team. 

Mozilla Firefox is an open source Web browser. 

Users of Firefox are advised to upgrade to these erratum packages, which contain Firefox version 1.5.0.8 that corrects these issues. 


From Red Hat Security Advisory 2006:0733 :

Several flaws were found in the way Firefox processes certain malformed Javascript code.  A malicious web page could cause the execution of Javascript code in such a way that could cause Firefox to crash or execute arbitrary code as the user running Firefox.  (CVE-2006-5463, CVE-2006-5747, CVE-2006-5748)

Several flaws were found in the way Firefox renders web pages.  A malicious web page could cause the browser to crash or possibly execute arbitrary code as the user running Firefox.  (CVE-2006-5464)

A flaw was found in the way Firefox verifies RSA signatures.  For RSA keys with exponent 3 it is possible for an attacker to forge a signature that would be incorrectly verified by the NSS library.  Firefox as shipped trusts several root Certificate Authorities that use exponent 3. An attacker could have created a carefully crafted SSL certificate which be incorrectly trusted when their site was visited by a victim.  This flaw was previously thought to be fixed in Firefox 1.5.0.7, however Ulrich Kuehn discovered the fix was incomplete (CVE-2006-5462)


From Red Hat Security Advisory 2006:0675 :

Two flaws were found in the way Firefox processed certain regular expressions.  A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox.  (CVE-2006-4565, CVE-2006-4566)

A number of flaws were found in Firefox.  A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox.  (CVE-2006-4571)

A flaw was found in the handling of Javascript timed events.  A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox.  (CVE-2006-4253)

Daniel Bleichenbacher recently described an implementation error in RSA signature verification.  For RSA keys with exponent 3 it is possible for an attacker to forge a signature that would be incorrectly verified by the NSS library.  Firefox as shipped trusts several root Certificate Authorities that use exponent 3.  An attacker could have created a carefully crafted SSL certificate which be incorrectly trusted when their site was visited by a victim.  (CVE-2006-4340)

A flaw was found in the Firefox auto-update verification system.  An attacker who has the ability to spoof a victim's DNS could get Firefox to download and install malicious code.  In order to exploit this issue an attacker would also need to get a victim to previously accept an unverifiable certificate.  (CVE-2006-4567)

Firefox did not properly prevent a frame in one domain from injecting content into a sub-frame that belongs to another domain, which facilitates website spoofing and other attacks (CVE-2006-4568)

Firefox did not load manually opened, blocked popups in the right domain context, which could lead to cross-site scripting attacks.  In order to exploit this issue an attacker would need to find a site which would frame their malicious page and convince the user to manually open a blocked popup.  (CVE-2006-4569)


From Red Hat Security Advisory 2006:0610 :

The Mozilla Foundation has discontinued support for the Mozilla Firefox 1.0 branch.  This update deprecates the Mozilla Firefox 1.0 branch in Red Hat Enterprise Linux 4 in favor of the supported Mozilla Firefox 1.5 branch. 

This update also resolves a number of outstanding Firefox security issues :

Several flaws were found in the way Firefox processed certain javascript actions.  A malicious web page could execute arbitrary javascript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.  (CVE-2006-2776, CVE-2006-2784, CVE-2006-2785, CVE-2006-2787, CVE-2006-3807, CVE-2006-3809, CVE-2006-3812)

Several denial of service flaws were found in the way Firefox processed certain web content.  A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox. (CVE-2006-2779, CVE-2006-2780, CVE-2006-3801, CVE-2006-3677, CVE-2006-3113, CVE-2006-3803, CVE-2006-3805, CVE-2006-3806, CVE-2006-3811)

A cross-site scripting flaw was found in the way Firefox processed Unicode Byte-Order-Mark (BOM) markers in UTF-8 web pages.  A malicious web page could execute a script within the browser that a web input sanitizer could miss due to a malformed 'script' tag.  (CVE-2006-2783)

Several flaws were found in the way Firefox processed certain javascript actions.  A malicious web page could conduct a cross-site scripting attack or steal sensitive information (such as cookies owned by other domains).  (CVE-2006-3802, CVE-2006-3810)

A form file upload flaw was found in the way Firefox handled javascript input object mutation.  A malicious web page could upload an arbitrary local file at form submission time without user interaction. (CVE-2006-2782)

A denial of service flaw was found in the way Firefox called the crypto.signText() javascript function.  A malicious web page could crash the browser if the victim had a client certificate loaded. (CVE-2006-2778)

Two HTTP response smuggling flaws were found in the way Firefox processed certain invalid HTTP response headers.  A malicious web site could return specially crafted HTTP response headers which may bypass HTTP proxy restrictions.  (CVE-2006-2786)

A flaw was found in the way Firefox processed Proxy AutoConfig scripts. A malicious Proxy AutoConfig server could execute arbitrary javascript instructions with the permissions of 'chrome', allowing the page to steal sensitive information or install browser malware.  (CVE-2006-3808)

A double free flaw was found in the way the nsIX509::getRawDER method was called.  If a victim visited a carefully crafted web page, it was possible to execute arbitrary code as the user running Firefox. (CVE-2006-2788)

Updated firefox packages that fix several security bugs are now available for Red Hat Enterprise Linux 4.

This update has been rated as having critical security impact by the Red Hat Security Response Team.

Mozilla Firefox is an open source Web browser.

Two flaws were found in the way Firefox processed certain regular expressions. A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox. (CVE-2006-4565, CVE-2006-4566)

A number of flaws were found in Firefox. A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox. (CVE-2006-4571)

A flaw was found in the handling of JavaScript timed events. A malicious web page could crash the browser or possibly execute arbitrary code as the user running Firefox. (CVE-2006-4253)

Daniel Bleichenbacher recently described an implementation error in RSA signature verification. For RSA keys with exponent 3 it is possible for an attacker to forge a signature that would be incorrectly verified by the NSS library. Firefox as shipped trusts several root Certificate Authorities that use exponent 3. An attacker could have created a carefully crafted SSL certificate which be incorrectly trusted when their site was visited by a victim.
(CVE-2006-4340)

A flaw was found in the Firefox auto-update verification system. An attacker who has the ability to spoof a victim's DNS could get Firefox to download and install malicious code. In order to exploit this issue an attacker would also need to get a victim to previously accept an unverifiable certificate. (CVE-2006-4567)

Firefox did not properly prevent a frame in one domain from injecting content into a sub-frame that belongs to another domain, which facilitates website spoofing and other attacks (CVE-2006-4568)

Firefox did not load manually opened, blocked popups in the right domain context, which could lead to cross-site scripting attacks. In order to exploit this issue an attacker would need to find a site which would frame their malicious page and convince the user to manually open a blocked popup. (CVE-2006-4569)

Users of Firefox are advised to upgrade to this update, which contains Firefox version 1.5.0.7 that corrects these issues.

The remote Redhat Enterprise Linux 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2006:0675 advisory.

    Mozilla Firefox is an open source Web browser.

    Two flaws were found in the way Firefox processed certain regular     expressions.  A malicious web page could crash the browser or possibly     execute arbitrary code as the user running Firefox.  (CVE-2006-4565,     CVE-2006-4566)

    A number of flaws were found in Firefox.  A malicious web page could crash     the browser or possibly execute arbitrary code as the user running Firefox.
     (CVE-2006-4571)

    A flaw was found in the handling of Javascript timed events.  A malicious     web page could crash the browser or possibly execute arbitrary code as the     user running Firefox. (CVE-2006-4253)

    Daniel Bleichenbacher recently described an implementation error in RSA     signature verification.  For RSA keys with exponent 3 it is possible for an     attacker to forge a signature that would be incorrectly verified by the NSS     library. Firefox as shipped trusts several root Certificate Authorities     that use exponent 3.  An attacker could have created a carefully crafted     SSL certificate which be incorrectly trusted when their site was visited by     a victim. (CVE-2006-4340)

    A flaw was found in the Firefox auto-update verification system.  An     attacker who has the ability to spoof a victim's DNS could get Firefox to     download and install malicious code. In order to exploit this issue an     attacker would also need to get a victim to previously accept an     unverifiable certificate. (CVE-2006-4567)

    Firefox did not properly prevent a frame in one domain from injecting     content into a sub-frame that belongs to another domain, which facilitates     website spoofing and other attacks (CVE-2006-4568)

    Firefox did not load manually opened, blocked popups in the right domain     context, which could lead to cross-site scripting attacks.  In order to     exploit this issue an attacker would need to find a site which would frame     their malicious page and convince the user to manually open a blocked     popup. (CVE-2006-4569)

    Users of Firefox are advised to upgrade to this update, which contains     Firefox version 1.5.0.7 that corrects these issues.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The installed version of Firefox is affected by various security issues, some of which may lead to execution of arbitrary code on the affected host subject to the user's privileges.

This security update brings Mozilla Firefox to version 1.5.0.7.

Please also see http://www.mozilla.org/projects/security/known-vulnerabilities.html for more details.

It fixes the following security problems: MFSA 2006-64/CVE-2006-4571:
Crashes with evidence of memory corruption MFSA 2006-62/CVE-2006-4569:
Popup-blocker cross-site scripting (XSS) MFSA 2006-61/CVE-2006-4568:
Frame spoofing using document.open() MFSA 2006-60/CVE-2006-4340/CERT VU#845620: RSA Signature Forgery MFSA 2006-59/CVE-2006-4253:
Concurrency-related vulnerability MFSA 2006-58/CVE-2006-4567:
Auto-Update compromise through DNS and SSL spoofing MFSA 2006-57/CVE-2006-4565/CVE-2006-4566: JavaScript Regular Expression Heap Corruption

The Mozilla Foundation reports of multiple security issues in Firefox, SeaMonkey, and Thunderbird. Several of these issues can probably be used to run arbitrary code with the privilege of the user running the program.

- MFSA 2006-64 Crashes with evidence of memory corruption (rv:1.8.0.7)

- MFSA 2006-63 JavaScript execution in mail via XBL

- MFSA 2006-62 Popup-blocker cross-site scripting (XSS)

- MFSA 2006-61 Frame spoofing using document.open()

- MFSA 2006-60 RSA Signature Forgery

- MFSA 2006-59 Concurrency-related vulnerability

- MFSA 2006-58 Auto-Update compromise through DNS and SSL spoofing

- MFSA 2006-57 JavaScript Regular Expression Heap Corruption

Various flaws have been reported that allow an attacker to execute arbitrary code with user privileges by tricking the user into opening a malicious web page containing JavaScript. (CVE-2006-4253, CVE-2006-4565, CVE-2006-4566, CVE-2006-4568, CVE-2006-4569 CVE-2006-4571)

The NSS library did not sufficiently check the padding of PKCS #1 v1.5 signatures if the exponent of the public key is 3 (which is widely used for CAs). This could be exploited to forge valid signatures without the need of the secret key. (CVE-2006-4340)

Jon Oberheide reported a way how a remote attacker could trick users into downloading arbitrary extensions with circumventing the normal SSL certificate check. The attacker would have to be in a position to spoof the victim's DNS, causing them to connect to sites of the attacker's choosing rather than the sites intended by the victim. If they gained that control and the victim accepted the attacker's cert for the Mozilla update site, then the next update check could be hijacked and redirected to the attacker's site without detection.
(CVE-2006-4567).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-200609-19 (Mozilla Firefox: Multiple vulnerabilities)

    A number of vulnerabilities were found and fixed in Mozilla Firefox.
    For details please consult the references below.
  Impact :

    The most severe vulnerability involves enticing a user to visit a     malicious website, crashing the browser and executing arbitrary code     with the rights of the user running the application.
  Workaround :

    There is no known workaround at this time.

A number of security vulnerabilities have been discovered and corrected in the latest Mozilla Firefox program, version 1.5.0.7.

This update provides the latest Firefox to correct these issues.

This security update brings Mozilla Firefox to version 1.5.0.7.

More details can be found on:
http://www.mozilla.org/projects/security/known-vulnerabiliti es.html

It includes fixes to the following security problems :

  - Crashes with evidence of memory corruption MFSA 2006-63     / CVE-2006-4570: JavaScript execution in mail via XBL     MFSA 2006-62 / CVE-2006-4569: Popup-blocker cross-site     scripting (XSS) MFSA 2006-61 / CVE-2006-4568: Frame     spoofing using document.open() MFSA 2006-60 /     CVE-2006-4340/CERT VU#845620: RSA Signature Forgery MFSA     2006-59 / CVE-2006-4253: Concurrency-related     vulnerability MFSA 2006-58 / CVE-2006-4567: Auto-Update     compromise through DNS and SSL spoofing MFSA 2006-57 /     CVE-2006-4565 / CVE-2006-4566: JavaScript Regular     Expression Heap Corruption. (MFSA 2006-64 /     CVE-2006-4571)

The installed version of SeaMonkey has various security issues, some of which may lead to execution of arbitrary code on the affected host subject to the user's privileges.

Versions of Mozilla Firefox 1.5.x prior to 1.5.0.7 are affected by multiple security issues, some of which may lead to execution of arbitrary code on the affected host subject to the user's privileges.

The remote Windows host contains a mail client that is affected by multiple vulnerabilities.  The remote version of Mozilla Thunderbird has various security issues, at least one of which may lead to execution of arbitrary code on the affected host subject to the user's privileges.

ID	Name	Product	Family	Published	Updated	Severity
67422	Oracle Linux 4 : firefox (ELSA-2006-0733 / ELSA-2006-0675 / ELSA-2006-0610)	Nessus	Oracle Linux Local Security Checks	7/12/2013	1/14/2021	critical
22424	CentOS 4 : firefox (CESA-2006:0675)	Nessus	CentOS Local Security Checks	9/22/2006	1/4/2021	critical
22357	RHEL 4 : firefox (RHSA-2006:0675)	Nessus	Red Hat Local Security Checks	9/15/2006	11/4/2024	medium
22369	Firefox < 1.5.0.7 Multiple Vulnerabilities	Nessus	Windows	9/16/2006	7/16/2018	high
27114	openSUSE 10 Security Update : MozillaFirefox (MozillaFirefox-2090)	Nessus	SuSE Local Security Checks	10/17/2007	1/14/2021	critical
22350	FreeBSD : mozilla -- multiple vulnerabilities (e6296105-449b-11db-ba89-000c6ec775d9)	Nessus	FreeBSD Local Security Checks	9/15/2006	1/6/2021	critical
27931	Ubuntu 6.06 LTS : firefox vulnerabilities (USN-351-1)	Nessus	Ubuntu Local Security Checks	11/10/2007	1/19/2021	critical
22470	GLSA-200609-19 : Mozilla Firefox: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	9/29/2006	1/6/2021	critical
24554	Mandrake Linux Security Advisory : mozilla-firefox (MDKSA-2006:168)	Nessus	Mandriva Local Security Checks	2/18/2007	1/6/2021	critical
29355	SuSE 10 Security Update : Security update for (ZYPP Patch Number 2088)	Nessus	SuSE Local Security Checks	12/13/2007	1/14/2021	critical
3744	SeaMonkey < 1.0.5 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	9/18/2006	3/6/2019	medium
3743	Mozilla Firefox 1.5.x < 1.5.0.7 Multiple Vulnerabilities	Nessus Network Monitor	Web Clients	9/18/2006	3/6/2019	medium
3745	Mozilla Thunderbird < 1.5.0.7 Multiple Vulnerabilities (deprecated)	Nessus Network Monitor	SMTP Clients	9/18/2006	3/6/2019	medium

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