CVE-2015-3294 Information disclosure in n/a

Medium 6.4 Published 8 May 2015 Updated 6 Aug 2024

Remote attackers can read process memory and crash the Dnsmasq server by sending malformed DNS requests due to improper return value handling.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: Available

What is CVE-2015-3294?

CVE-2015-3294 is a medium-severity vulnerability in Oracle Solaris, published on 8 May 2015. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-19

Which versions are affected by CVE-2015-3294?

It affects 2 products.

Linux distribution packages (4)

`dnsmasq` SUSE:Cloud Compute Node for SUSE Linux Enterprise 12 5	All versions	`2.71-4.1`
`dnsmasq` SUSE:Linux Enterprise Desktop 12	All versions	`2.71-4.1`
`dnsmasq` SUSE:Linux Enterprise Server 12	All versions	`2.71-4.1`
`dnsmasq` SUSE:Linux Enterprise Server for SAP Applications 12	All versions	`2.71-4.1`

Products include Oracle Solaris, Thekelleys Dnsmasq.

How do I fix CVE-2015-3294?

Upgrade to a fixed version.

Is CVE-2015-3294 being exploited?

There is no known exploitation of CVE-2015-3294 in the wild and no public exploit code.

All Oracle Solaris vulnerabilities

Sources

Also known as DEBIAN-CVE-2015-3294, DLA-225-1, DSA-3251-1, GHSA-68qg-cgxp-wxcf, MGASA-2015-0214, SUSE-SU-2015:0979-1 and 4 more.