CVE-2009-1834

Public Exploit

Description

Visual truncation vulnerability in netwerk/dns/src/nsIDNService.cpp in Mozilla Firefox before 3.0.11 and SeaMonkey before 1.1.17 allows remote attackers to spoof the location bar via an IDN with invalid Unicode characters that are displayed as whitespace, as demonstrated by the \u115A through \u115E characters.

Category

4.3
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 15.05% Top 10%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory slackware.com Vendor Advisory debian.org Vendor Advisory sun.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory mozilla.org Vendor Advisory vupen.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.vupen.com/english/advisories/2009/1572 patch vendor advisory vdb entry
http://www.securityfocus.com/bid/35388 vdb entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10436 signature vdb entry
http://www.securityfocus.com/bid/35326 vdb entry
http://www.mozilla.org/security/announce/2009/mfsa2009-25.html vendor advisory
https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00657.html vendor advisory
http://secunia.com/advisories/35431 third party advisory vendor advisory
http://secunia.com/advisories/35331 third party advisory vendor advisory
http://secunia.com/advisories/35468 third party advisory
http://secunia.com/advisories/35439 third party advisory vendor advisory
https://www.redhat.com/archives/fedora-package-announce/2009-June/msg00574.html vendor advisory
http://secunia.com/advisories/35415 third party advisory
https://rhn.redhat.com/errata/RHSA-2009-1095.html vendor advisory
http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.372468 vendor advisory
http://osvdb.org/55162 vdb entry
https://bugzilla.mozilla.org/show_bug.cgi?id=479413 exploit
http://www.debian.org/security/2009/dsa-1820 vendor advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-66-264308-1 vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=503573

Frequently Asked Questions

What is the severity of CVE-2009-1834?
CVE-2009-1834 has been scored as a medium severity vulnerability.
How to fix CVE-2009-1834?
To fix CVE-2009-1834, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-1834 being actively exploited in the wild?
It is possible that CVE-2009-1834 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~15% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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