Vulnerability in Samba
CVE-2017-9461
smbd in Samba before 4.4.10 and 4.5.x before 4.5.6 has a denial of service vulnerability (fd_open_atomic infinite loop with high CPU usage and memory consumption) due to wrongly handling dangling symlinks.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.042 (90.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.042 · newest: 0.042 · change: +0.000
Affected products
- Samba — versions 4.5.0, 4.5.1, 4.5.2
- Debian Linux — versions 8.0
- Red Hat Enterprise Linux Desktop — versions 7.0
- Red Hat Enterprise Linux Server — versions 7.0
- Red Hat Enterprise Linux Server Aus — versions 7.4, 7.6
- Red Hat Enterprise Linux Server Eus — versions 7.4, 7.5, 7.6
- Red Hat Enterprise Linux Server Tus — versions 7.6
- Red Hat Enterprise Linux Workstation — versions 7.0
Weakness classification (CWE)
References
- www.securityfocus.com/bid/99455 (VDB Entry, Third Party Advisory, vdb-entry)
- access.redhat.com/errata/RHSA-2017:2778 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:1950 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2017:2338 (vendor-advisory, Third Party Advisory)
- git.samba.org/
- bugzilla.samba.org/show_bug.cgi (Exploit, Patch, VDB Entry, Third Party Advisory, Issue Tracking)
- bugs.debian.org/864291 (Exploit, Patch, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2019/04/msg00013.html (mailing-list, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-9461?
- CVE-2017-9461 is a medium-severity vulnerability in Samba, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 6.5/10. Published 2017-06-06.
- How severe is CVE-2017-9461?
- Medium severity. CVSS v3 base score is 6.5 out of 10.