Updated firefox packages that fix several security bugs are now available for Red Hat Enterprise Linux 4 and 5.

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.

Several flaws were found in the way Firefox processed certain malformed JavaScript code. A web page containing malicious JavaScript code could cause Firefox to crash or potentially execute arbitrary code as the user running Firefox. (CVE-2007-2867, CVE-2007-2868)

A flaw was found in the way Firefox handled certain FTP PASV commands.
A malicious FTP server could use this flaw to perform a rudimentary port-scan of machines behind a user's firewall. (CVE-2007-1562)

Several denial of service flaws were found in the way Firefox handled certain form and cookie data. A malicious website that is able to set arbitrary form and cookie data could prevent Firefox from functioning properly. (CVE-2007-1362, CVE-2007-2869)

A flaw was found in the way Firefox handled the addEventListener JavaScript method. A malicious website could use this method to access or modify sensitive data from another website. (CVE-2007-2870)

A flaw was found in the way Firefox displayed certain web content. A malicious web page could generate content that would overlay user interface elements such as the hostname and security indicators, tricking users into thinking they are visiting a different site.
(CVE-2007-2871)

Users of Firefox are advised to upgrade to these erratum packages, which contain Firefox version 1.5.0.12 that corrects these issues.

Updated firefox packages that fix several security bugs are now available for Fedora Core 7.

Users of devhelp are advised to upgrade to these erratum packages, which contain an update to devhelp built against the updated Firefox packages.

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

This update brings Mozilla Firefox to security update version 2.0.0.4

This is a major upgrade from the Firefox 1.5.0.x line for SUSE Linux 10.0 and 10.1.

  - MFSA 2007-17 / CVE-2007-2871 :

    Chris Thomas demonstrated that XUL popups opened by web     content could be placed outside the boundaries of the     content area. This could be used to spoof or hide parts     of the browser chrome UI such as the location bar.

  - MFSA 2007-16 / CVE-2007-2870 :

    Mozilla contributor moz_bug_r_a4 demonstrated that the     addEventListener method could be used to inject script     into another site in violation of the browser's     same-origin policy. This could be used to access or     modify private or valuable information from that other     site.

  - MFSA 2007-14 / CVE-2007-1362 :

    Nicolas Derouet reported two problems with cookie     handling in Mozilla clients. Insufficient length checks     could be use to exhaust browser memory and so to crash     the browser or at least slow it done by a large degree.

    The second issue was that the cookie path and name     values were not checked for the presence of the     delimiter used for internal cookie storage, and if     present this confused future interpretation of the     cookie data. This is not considered to be exploitable.

  - MFSA 2007-13 / CVE-2007-2869 :

    Marcel reported that a malicious web page could perform     a denial of service attack against the form autocomplete     feature that would persist from session to session until     the malicious form data was deleted. Filling a text     field with millions of characters and submitting the     form will cause the victim's browser to hang for up to     several minutes while the form data is read, and this     will happen the first time autocomplete is triggered     after every browser restart. 

    No harm is done to the user's computer, but the     frustration caused by the hang could prevent use of     Firefox if users don't know how to clear the bad state.

  - MFSA 2007-12 / CVE-2007-2867 / CVE-2007-2868

    As part of the Firefox 2.0.0.4 and 1.5.0.12 update     releases Mozilla developers fixed many bugs to improve     the stability of the product. Some of these crashes that     showed evidence of memory corruption under certain     circumstances and we presume that with enough effort at     least some of these could be exploited to run arbitrary     code. 

    Without further investigation we cannot rule out the     possibility that for some of these an attacker might be     able to prepare memory for exploitation through some     means other than JavaScript, such as large images.

  - MFSA 2007-11 / CVE-2007-1562 :

    Incorrect FTP PASV handling could be used by malicious     ftp servers to do a rudimentary port scanning of for     instance internal networks of the computer the browser     is running on.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
25365	RHEL 4 / 5 : firefox (RHSA-2007:0400)	Nessus	Red Hat Local Security Checks	2007/6/1	2021/1/14	high
62268	Fedora 7 : devhelp-0.13-8.fc7 (2007-0006)	Nessus	Fedora Local Security Checks	2012/9/24	2021/1/11	high
27121	openSUSE 10 Security Update : MozillaFirefox (MozillaFirefox-3547)	Nessus	SuSE Local Security Checks	2007/10/17	2021/1/14	high

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