CVE-2015-3294
First published: Fri May 08 2015(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| the kelleys dnsmasq | <=2.73 | |
| Oracle Solaris SPARC | =11.2 |
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Reference Links
- http://lists.opensuse.org/opensuse-updates/2015-05/msg00013.html
- http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009382.html
- http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009387.html
- http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commitdiff;h=ad4a8ff7d9097008d7623df8543df435bfddeac8
- http://www.debian.org/security/2015/dsa-3251
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
- http://www.securityfocus.com/archive/1/535354/100/1100/threaded
- http://www.securityfocus.com/bid/74452
- http://www.securitytracker.com/id/1032195
- http://www.ubuntu.com/usn/USN-2593-1
- https://security.gentoo.org/glsa/201512-01
- http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commitdiff%3Bh=ad4a8ff7d9097008d7623df8543df435bfddeac8
Frequently Asked Questions
What is the severity of CVE-2015-3294?
CVE-2015-3294 has been classified with a moderate severity level due to its potential for causing denial of service through process memory exploitation.
How do I fix CVE-2015-3294?
To fix CVE-2015-3294, you should update Dnsmasq to version 2.73rc4 or later, as this version addresses the vulnerability.
Which versions of Dnsmasq are affected by CVE-2015-3294?
CVE-2015-3294 affects Dnsmasq versions up to and including 2.73rc3.
Can CVE-2015-3294 be exploited remotely?
Yes, CVE-2015-3294 can be exploited by remote attackers through the submission of malformed DNS requests.
What are the consequences of an exploit of CVE-2015-3294?
An exploit of CVE-2015-3294 can lead to an out-of-bounds read and cause the Dnsmasq service to crash, resulting in denial of service.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/remedy
- agent/last-modified-date
- agent/author
- agent/references
- agent/severity
- agent/weakness
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/thekelleys
- canonical/the kelleys dnsmasq
- version/the kelleys dnsmasq/2.73
- vendor/oracle
- canonical/oracle solaris sparc
- version/oracle solaris sparc/11.2