CVE-2015-3294

Public Exploit

Description

The tcp_request function in Dnsmasq before 2.73rc4 does not properly handle the return value of the setup_reply function, which allows remote attackers to read process memory and cause a denial of service (out-of-bounds read and crash) via a malformed DNS request.

Category

6.4
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.20%
Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory gentoo.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.debian.org/security/2015/dsa-3251 vendor advisory
http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009382.html mailing list exploit
http://lists.opensuse.org/opensuse-updates/2015-05/msg00013.html vendor advisory
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commitdiff%3Bh=ad4a8ff7d9097008d7623df8543df435bfddeac8
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html third party advisory
http://www.ubuntu.com/usn/USN-2593-1 vendor advisory
https://security.gentoo.org/glsa/201512-01 vendor advisory
http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009387.html third party advisory mailing list
http://www.securitytracker.com/id/1032195 vdb entry
http://www.securityfocus.com/bid/74452 vdb entry
http://www.securityfocus.com/archive/1/535354/100/1100/threaded mailing list

Frequently Asked Questions

What is the severity of CVE-2015-3294?
CVE-2015-3294 has been scored as a medium severity vulnerability.
How to fix CVE-2015-3294?
To fix CVE-2015-3294, 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-2015-3294 being actively exploited in the wild?
It is possible that CVE-2015-3294 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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