CVE-2017-9461
MEDIUM severity · CVSS 6.5 · CWE-835
6.5CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)4%
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://bugs.debian.org/864291 ↗
Additional information
- NVD record
- https://bugs.debian.org/864291Patch
- https://bugzilla.samba.org/show_bug.cgi?id=12572Patch
- http://www.securityfocus.com/bid/99455Advisory
- https://access.redhat.com/errata/RHSA-2017:1950Advisory
- https://access.redhat.com/errata/RHSA-2017:2338Advisory
- https://access.redhat.com/errata/RHSA-2017:2778Advisory
- https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=10c3e3923022485c720f322ca4f0aca5d7501310
- https://lists.debian.org/debian-lts-announce/2019/04/msg00013.htmlAdvisory