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Vulnerability Alert

Mozilla JavaScript Functions Improperly Initialized Memory Buffer Overflow Vulnerability

 
Threat Type:CWE-20: Input Validation
IntelliShield ID:31537
Version:2
First Published:2013 October 31 15:07 GMT
Last Published:2013 November 01 15:47 GMT
Port: Not available
CVE:CVE-2013-5595
BugTraq ID:63421
Urgency:Unlikely Use
Credibility:Confirmed
Severity:Moderate Damage
CVSS Base:6.8 CVSS Calculator
CVSS Version 2.0
CVSS Temporal:5.0
 
Version Summary:FreeBSD has released a VuXML document and updated ports collection to address the Mozilla JavaScript functions improperly initialized memory buffer overflow vulnerability.
 
 
Description
A vulnerability in Mozilla Firefox, Thunderbird, and SeaMonkey could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a targeted system.

The vulnerability is due to an unspecified error in the JavaScript engine of the affected software. An attacker could exploit this vulnerability by convincing a user to visit a crafted web page. If the user visits the malicious web page, it could trigger memory corruption in the browser. The attacker could leverage the memory corruption to crash the affected browser and cause a DoS condition on the targeted system.

Mozilla has confirmed this vulnerability and released updated software.
 
Warning Indicators
The following Mozilla products are affected:
  • Firefox versions prior to 25.0
  • Firefox ESR versions prior to 17.0.10 and 24.1
  • Thunderbird versions prior to 24.1
  • Thunderbird ESR versions prior to 17.0.10
  • SeaMonkey versions prior to 2.22
 
IntelliShield Analysis
To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link.

This vulnerability cannot be exploited through email in Thunderbird and SeaMonkey because the products have scripting disabled; however, the vulnerability could be exploited in the browser-like context of the products.
 
Vendor Announcements
Mozilla has released a security advisory at the following link: MFSA-2013-96

FreeBSD has released a VuXML document at the following link: mozilla -- multiple vulnerabilities

Red Hat has released an official CVE statement and a security advisory for bug 1023839 at the following links: CVE-2013-5595 and RHSA-2013-1476
 
Impact
An unauthenticated, remote attacker could exploit the vulnerability to cause a DoS condition on a targeted system.
 
Technical Information
Technical details are not available.
 
Safeguards
Administrators are advised to apply the appropriate updates.

Users should verify that unsolicited links are safe to follow.

Users are advised not to visit websites or follow links that have suspicious characteristics or cannot be verified as safe.

Administrators are advised to monitor affected systems.
 
Patches/Software
Mozilla has released updated software at the following links:

Firefox 25.0
Firefox ESR 24.1
Firefox ESR 17.0.10
Thunderbird 24.1
Thunderbird ESR 17.0.10
Seamonkey 2.22

CentOS packages can be updated using the up2date or yum command.

FreeBSD releases ports collection updates at the following link: Ports Collection Index

Red Hat has released updated software for registered subscribers at the following link: Red Hat Network. Red Hat packages can be updated on Red Hat Enterprise Linux versions 5 and later using the yum tool.
 
Alert History
 

Version 1, October 31, 2013, 3:07 PM: Mozilla Firefox, Thunderbird, and SeaMonkey contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service condition on a targeted system. Updates are available.



Product Sets
 
The security vulnerability applies to the following combinations of products.

Primary Products:
Mozilla FoundationFirefox 19.0 Base, .1, .2 | 20.0 Base | 21.0 Base | 22.0 Base | 23.0 Base | 24.0 Base
Mozilla FoundationFirefox ESR 10.0 .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11 | 17.0 Base, .1, .2, .3, .4, .5, .6, .7, .8, .9 | 24.0 Base
Mozilla FoundationSeaMonkey 2.0 .0, .1, .2, .3, .4, .5, .6, .7, .8, .9, .10, .11, .12, .13, .14 | 2.1 Base | 2.2 Base | 2.3 Base, .1, .2, .3 | 2.4 Base, .1 | 2.5 Base | 2.6 .1 | 2.7 Base, .1 | 2.8 Base | 2.9 Base, .1 | 2.10 Base | 2.11 Base | 2.12 Base | 2.13 Base, .1 | 2.14 Base, 0.1 | 2.15 Base | 2.16 Base, .1 | 2.17 Base | 2.18 Base | 2.19 Base | 2.20 Base | 2.21 Base
Mozilla FoundationThunderbird 19.0 Base | 20.0 Base | 21.0 Base | 22.0 Base | 23.0 Base | 24.0 Base
Mozilla FoundationThunderbird ESR 17.0 Base, .1, .2, .3, .4, .5, .6, .7, .8, .9

Associated Products:
CentOS ProjectCentOS 5 .0 i386, .0 x86_64, .1 i386, .1 x86_64, .2 i386, .2 x86_64, .3 i386, .3 x86_64, .4 i386, .4 x86_64, .5 i386, .5 x86_64 | 6 .0 i386, .0 x86_64, .1 i386, .1 x86_64, .2 i386, .2 x86_64
FreeBSD ProjectFreeBSD 6.3 Base | 6.4 Base | 7.0 Base | 7.1 Base | 7.2 Base | 7.3 Base | 7.4 Base | 8.0 Base | 8.1 Base | 8.2 Base | 8.3 Base | 9.0 Base | 9.1 Base | 9.2 Base
Red Hat, Inc.Red Hat Enterprise Linux 5 IA-32, IA-64, PPC, ppc64, s390, s390x, x86_64
Red Hat, Inc.Red Hat Enterprise Linux Server AUS 6.4 Base, IA-32, x86_64
Red Hat, Inc.Red Hat Enterprise Linux Desktop 5 IA-32, x86_64 | 6 IA-32, x86_64
Red Hat, Inc.Red Hat Enterprise Linux Desktop Workstation 5 IA-32, x86-64
Red Hat, Inc.Red Hat Enterprise Linux HPC Node 6 x86_64
Red Hat, Inc.Red Hat Enterprise Linux Server 6 IA-32, PPC, PPC 64, s390, s390x, x86_64
Red Hat, Inc.Red Hat Enterprise Linux Server EUS 6.4z Base, IA-32, x86_64, PPC, PPC64, s390, s390x
Red Hat, Inc.Red Hat Enterprise Linux Workstation 6 IA-32, x86_64




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