Buffer overflow in Samba
CVE-2016-0771
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:H.
EPSS exploit prediction
EPSS: 0.028 (85.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.028 · newest: 0.028 · change: 0.000
Affected products
- Samba — versions 4.0.0, 4.0.1, 4.0.2
Weakness classification (CWE)
References
- lists.opensuse.org/opensuse-security-announce/2016-03/msg00063.html (vendor-advisory)
- www.samba.org/samba/security/CVE-2016-0771.html (Vendor Advisory)
- bugzilla.samba.org/show_bug.cgi
- bugzilla.samba.org/show_bug.cgi
- www.securityfocus.com/bid/84273 (vdb-entry)
- www.ubuntu.com/usn/USN-2922-1 (vendor-advisory)
- www.debian.org/security/2016/dsa-3514 (vendor-advisory)
- www.securitytracker.com/id/1035219 (vdb-entry)
Frequently asked questions
- What is CVE-2016-0771?
- CVE-2016-0771 is a medium-severity vulnerability in Samba, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.9/10. Published 2016-03-13.
- How severe is CVE-2016-0771?
- Medium severity. CVSS v3 base score is 5.9 out of 10.