Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Thekelleys | Dnsmasq | <= 2.73 |
| Oracle | Solaris | 11.2 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-updates/2015-05/msg00013.html
- http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009382.htmlExploit
- http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009387.htmlThird Party Advisory
- http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commitdiff%3Bh=ad4a8ff7d90970
- http://www.debian.org/security/2015/dsa-3251Vendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.htmlThird Party Advisory
- 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-2593-1Vendor Advisory
- https://security.gentoo.org/glsa/201512-01
- http://lists.opensuse.org/opensuse-updates/2015-05/msg00013.html
- http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009382.htmlExploit
- http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009387.htmlThird Party Advisory
- http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commitdiff%3Bh=ad4a8ff7d90970
FAQ
What is CVE-2015-3294?
CVE-2015-3294 is a vulnerability with a CVSS score of 6.4 (MEDIUM). 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 ser...
How severe is CVE-2015-3294?
CVE-2015-3294 has been rated MEDIUM with a CVSS base score of 6.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2015-3294?
Check the references section above for vendor advisories and patch information. Affected products include: Thekelleys Dnsmasq, Oracle Solaris.