CVE-2015-3294
MEDIUM severity · CVSS 6.4 · CWE-19
6.4CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impactNone
Availability impact—
Exploit probability (EPSS)5%
AV:N/AC:L/Au:N/C:P/I:N/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Additional information
- NVD record
- http://www.debian.org/security/2015/dsa-3251Advisory
- http://lists.opensuse.org/opensuse-updates/2015-05/msg00013.html
- http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009387.htmlAdvisory
- http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commitdiff%3Bh=ad4a8ff7d9097008d7623df8543df435bfddeac8
- http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.htmlAdvisory
- http://www.securityfocus.com/archive/1/535354/100/1100/threaded
- http://www.securityfocus.com/bid/74452
- http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2015q2/009382.htmlExploit