CVE-2015-3294

Severity: medium (CVSS 6.4 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 5.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2015-05-08 · updated 2026-06-17
Weakness: CWE-19

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.

Affected products

Oracle Corporation Solaris Operating System: 11.2
Simon Kelley dnsmasq: through 2.73

References

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%3Ba=commitdiff%3Bh=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://lists.opensuse.org/opensuse-updates/2015-05/msg00013.html

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