Buffer overflow in Samba - CVE-2016-0771
Published: March 14, 2016 / Updated: July 28, 2020
Vulnerability identifier: #VU32319
CSH Severity: Medium
CVSS v4: 6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2016-0771
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote authenticated user to #BASIC_IMPACT#.
The internal DNS server in Samba 4.x before 4.1.23, 4.2.x before 4.2.9, 4.3.x before 4.3.6, and 4.4.x before 4.4.0rc4, when an AD DC is configured, allows remote authenticated users to cause a denial of service (out-of-bounds read) or possibly obtain sensitive information from process memory by uploading a crafted DNS TXT record.
Affected software
Samba
samba (Alpine package)
Slackware Linux
samba (Alpine package)
Slackware Linux
How to mitigate CVE-2016-0771
Install update from vendor's website.
Samba - update to 4.1.23
samba (Alpine package) - update to 4.1.23-r0
samba (Alpine package) - update to 4.1.23-r0
External References
- http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00063.html
- http://www.debian.org/security/2016/dsa-3514
- http://www.securityfocus.com/bid/84273
- http://www.securitytracker.com/id/1035219
- http://www.ubuntu.com/usn/USN-2922-1
- https://bugzilla.samba.org/show_bug.cgi?id=11128
- https://bugzilla.samba.org/show_bug.cgi?id=11686
- https://www.samba.org/samba/security/CVE-2016-0771.html