CVE-2017-9461
UnknownEPSS 4.19%
Last modified
CVE-2017-9461 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 4.19% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Samba | Samba | <= 4.4.9 |
| Samba | Samba | 4.5.0 |
| Samba | Samba | 4.5.1 |
| Samba | Samba | 4.5.2 |
| Samba | Samba | 4.5.3 |
| Samba | Samba | 4.5.4 |
| Samba | Samba | 4.5.5 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 7.4 |
| Redhat | Enterprise Linux Server Aus | 7.6 |
| Redhat | Enterprise Linux Server Eus | 7.4 |
| Redhat | Enterprise Linux Server Eus | 7.5 |
| Redhat | Enterprise Linux Server Eus | 7.6 |
| Redhat | Enterprise Linux Server Tus | 7.6 |
| Redhat | Enterprise Linux Workstation | 7.0 |
| Debian | Debian Linux | 8.0 |
References
- http://www.securityfocus.com/bid/99455Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1950Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2338Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2778Third Party Advisory
- https://bugs.debian.org/864291Exploit, Issue Tracking, Patch, Third Party Advisory
- https://bugzilla.samba.org/show_bug.cgi?id=12572Exploit, Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2019/04/msg00013.htmlThird Party Advisory
- http://www.securityfocus.com/bid/99455Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1950Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2338Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2778Third Party Advisory
- https://bugs.debian.org/864291Exploit, Issue Tracking, Patch, Third Party Advisory
- https://bugzilla.samba.org/show_bug.cgi?id=12572Exploit, Issue Tracking, Patch, Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2019/04/msg00013.htmlThird Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is 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.
How severe is CVE-2017-9461?
Severity scoring for CVE-2017-9461 is pending analysis. The EPSS model estimates a 4.19% probability of exploitation in the next 30 days.
How do I fix CVE-2017-9461?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2017-9461?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST