Vulnerability in Samba
CVE-2020-14383
A flaw was found in samba's DNS server. An authenticated user could use this flaw to the RPC server to crash. This RPC server, which also serves protocols other than dnsserver, will be restarted after a short delay, but it is easy for an authenticated non administrative attacker to crash it again as soon as it returns. The Samba DNS server itself will continue to operate, but many RPC services will not.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.022 (82.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Samba
- Red Hat Enterprise Linux — versions 8.0
- Samba — versions samba 4.11.15, samba 4.12.9, samba 4.13.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- www.samba.org/samba/security/CVE-2020-14383.html (Vendor Advisory)
- security.gentoo.org/glsa/202012-24 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2024/04/msg00015.html (mailing-list)
Frequently asked questions
- What is CVE-2020-14383?
- CVE-2020-14383 is a medium-severity vulnerability in Samba, classified under CWE-391. CVSS score: 6.5/10. Published 2020-12-02.
- How severe is CVE-2020-14383?
- Medium severity. CVSS v3 base score is 6.5 out of 10.
- Is CVE-2020-14383 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.