Data Handling in Oracle Solaris - CVE-2015-3294
Published: May 8, 2015 / Updated: August 9, 2020
Vulnerability identifier: #VU40796
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-3294
CWE-ID: CWE-19
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.
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 software
Oracle Solaris
Gentoo Linux
SUSE Linux
Gentoo Linux
SUSE Linux
How to mitigate CVE-2015-3294
Install update from vendor's website.
External 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;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