CVE-2020-27840
Samba Out-of-Bounds Write Vulnerability
Description
A flaw was found in samba. Spaces used in a string around a domain name (DN), while supposed to be ignored, can cause invalid DN strings with spaces to instead write a zero-byte into out-of-bounds memory, resulting in a crash. The highest threat from this vulnerability is to system availability.
INFO
Published Date :
May 12, 2021, 3:15 p.m.
Last Modified :
Nov. 21, 2024, 5:21 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2020-27840
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-27840.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-27840 vulnerability anywhere in the article.
-
tripwire.com
VERT Threat Alert: February 2025 Patch Tuesday Analysis
Today’s VERT Alert addresses Microsoft’s February 2025 Security Updates. VERT is actively working on coverage for these vulnerabilities and expects to ship ASPL-1143 as soon as coverage is completed.I ... Read more
The following table lists the changes that have been made to the
CVE-2020-27840 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1941400 Added Reference https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/ Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/ Added Reference https://security.gentoo.org/glsa/202105-22 Added Reference https://security.netapp.com/advisory/ntap-20210326-0007/ Added Reference https://www.debian.org/security/2021/dsa-4884 Added Reference https://www.samba.org/samba/security/CVE-2020-27840.html -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/ [No types assigned] Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/ [No types assigned] Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/ [No types assigned] Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/ -
Modified Analysis by [email protected]
May. 26, 2021
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202105-22 No Types Assigned https://security.gentoo.org/glsa/202105-22 Third Party Advisory -
CVE Modified by [email protected]
May. 26, 2021
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202105-22 [No Types Assigned] -
Initial Analysis by [email protected]
May. 21, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1941400 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1941400 Issue Tracking, Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/03/msg00036.html Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/VLZ74IF2N75VQSIHBL4B3P5WKWQCXSRY/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/X5J3B6PN5XMXF3OHYBNHDKZ3XFSUGY4L/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/ZXP3ONIY6MB4C5LDZV4YL5KJCES3UX24/ Mailing List, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20210326-0007/ No Types Assigned https://security.netapp.com/advisory/ntap-20210326-0007/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2021/dsa-4884 No Types Assigned https://www.debian.org/security/2021/dsa-4884 Third Party Advisory Changed Reference Type https://www.samba.org/samba/security/CVE-2020-27840.html No Types Assigned https://www.samba.org/samba/security/CVE-2020-27840.html Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.0.0 up to (excluding) 4.12.13 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.13.0 up to (excluding) 4.13.6 *cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* versions from (including) 4.14.0 up to (excluding) 4.14.1 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-27840 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-27840
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
5.20 }} 0.39%
score
0.88994
percentile