CVE-2011-4603

Description

The silc_channel_message function in ops.c in the SILC protocol plugin in libpurple in Pidgin before 2.10.1 does not perform the expected UTF-8 validation on message data, which allows remote attackers to cause a denial of service (application crash) via a crafted message, a different vulnerability than CVE-2011-3594.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 1.17% Top 25%
Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory pidgin.im
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.redhat.com/support/errata/RHSA-2011-1820.html vendor advisory
http://developer.pidgin.im/viewmtn/revision/info/afb9ede3de989f217f03d5670cca00e628bd11f1
http://www.securityfocus.com/bid/51074 vdb entry
https://hermes.opensuse.org/messages/13195955 vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18303 vdb entry signature
http://www.pidgin.im/news/security/?id=59 patch vendor advisory
http://developer.pidgin.im/viewmtn/revision/diff/c7b95cc3be0590b52edc02d4750ae62844c1acb6/with/afb9ede3de989f217f03d5670cca00e628bd11f1/libpurple/protocols/silc/ops.c patch
http://secunia.com/advisories/47234 third party advisory

Frequently Asked Questions

What is the severity of CVE-2011-4603?
CVE-2011-4603 has been scored as a medium severity vulnerability.
How to fix CVE-2011-4603?
To fix CVE-2011-4603, 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-2011-4603 being actively exploited in the wild?
It is possible that CVE-2011-4603 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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