Loop with Unreachable Exit Condition ('Infinite Loop') Affecting samba package, versions <2:4.3.11+dfsg-0ubuntu0.16.04.8
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1604-SAMBA-357269
- published6 Jun 2017
- disclosed6 Jun 2017
Introduced: 6 Jun 2017
CVE-2017-9461 (opens in a new tab)How to fix?
Upgrade Ubuntu:16.04 samba to version 2:4.3.11+dfsg-0ubuntu0.16.04.8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Ubuntu.
See How to fix? for Ubuntu:16.04 relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-9461
- https://bugzilla.samba.org/show_bug.cgi?id=12572
- https://git.samba.org/?p=samba.git;a=commit;h=10c3e3923022485c720f322ca4f0aca5d7501310
- https://bugs.debian.org/864291
- https://lists.debian.org/debian-lts-announce/2019/04/msg00013.html
- https://security-tracker.debian.org/tracker/CVE-2017-9461
- https://access.redhat.com/errata/RHSA-2017:1950
- https://access.redhat.com/errata/RHSA-2017:2338
- https://access.redhat.com/errata/RHSA-2017:2778
- http://www.securityfocus.com/bid/99455
- https://git.samba.org/?p=samba.git%3Ba=commit%3Bh=10c3e3923022485c720f322ca4f0aca5d7501310