CVE-2020-14303
Vulnerability Summary
Timeline
Description
A flaw was found in the AD DC NBT server in all Samba versions before 4.10.17, before 4.11.11 and before 4.12.4. A samba user could send an empty UDP packet to cause the samba server to crash.
CVSS Metrics
- v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS Trends
Current EPSS score: 3.54%• Percentile: 89%
Techniques & Countermeasures
- CWE-834•Excessive Iteration
The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.
Affected Systems
- alpine•samba
≥ 4.10.0, < 4.10.17-r0 | ≥ 4.10.0, < 4.11.14-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0 | ≥ 4.10.0, < 4.12.5-r0
- canonical•ubuntu_linux
12.04 | 14.04 | 16.04 | 18.04 | 20.04
- debian•samba
< 2:4.12.5+dfsg-1 | < 2:4.12.5+dfsg-1 | < 2:4.12.5+dfsg-1 | < 2:4.12.5+dfsg-1
- debian•debian_linux
9.0
- fedoraproject•fedora
31
- opensuse•leap
15.1 | 15.2
- samba•samba
≥ 4.10.0, < 4.10.17 | ≥ 4.11.0, < 4.11.11 | ≥ 4.12.0, < 4.12.4
References (13)
- https://bugzilla.redhat.com/show_bug.cgi?id=1851298%3B
- https://www.samba.org/samba/security/CVE-2020-14303.html
- https://security.netapp.com/advisory/ntap-20200709-0003/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YLNQ5GRXUKYRUAOFZ4DUBVN4SMTL6Q2/
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00030.html
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.html
- https://security.gentoo.org/glsa/202007-15
- https://usn.ubuntu.com/4454-2/
- https://usn.ubuntu.com/4454-1/
- http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.html
- https://lists.debian.org/debian-lts-announce/2020/11/msg00041.html
- https://security.alpinelinux.org/vuln/CVE-2020-14303
- https://security-tracker.debian.org/tracker/CVE-2020-14303