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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 4.22% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 90.5% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-06-06 21:00Z9 YR AGO
- Last updated
- 2024-08-05 17:11Z2 YR AGO
- Reserved
- 2017-06-06
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')Base
- Data version
- 5.1
- Document digest
- a1e72f9ac96a4b6acb57ffc60eaeab9f1ce18a4ab6e461d5022b0f26a773eafa
05 Affected products
06 References
- www.securityfocus.com99455http://www.securityfocus.com/bid/99455
- access.redhat.comRHSA-2017:2778https://access.redhat.com/errata/RHSA-2017:2778
- access.redhat.comRHSA-2017:1950https://access.redhat.com/errata/RHSA-2017:1950
- access.redhat.comRHSA-2017:2338https://access.redhat.com/errata/RHSA-2017:2338
- git.samba.orghttps://git.samba.org/?p=samba.git%3Ba=commit%3Bh=10c3e3923022485c720f322ca4f0aca5d7501310
- bugzilla.samba.orghttps://bugzilla.samba.org/show_bug.cgi?id=12572
- bugs.debian.orghttps://bugs.debian.org/864291
- lists.debian.org[debian-lts-announce] 20190409 [SECURITY] [DLA 1754-1] samba security updatehttps://lists.debian.org/debian-lts-announce/2019/04/msg00013.html
07 Fixed in
Debian 12
- samba Fixed in 2:4.5.6+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- samba Fixed in 2:4.5.6+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- samba Fixed in 2:4.5.6+dfsg-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- samba Fixed in 2:4.3.11+dfsg-0ubuntu0.14.04.9
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- samba Fixed in 2:4.3.11+dfsg-0ubuntu0.16.04.8
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.