CVE-2019-20795
Router Use-after-Free Vulnerability
Description
iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, although not a default, are sometimes a configuration option offered to end users. Even when setuid is used, other factors (such as C library configuration) may block exploitability.
INFO
Published Date :
May 9, 2020, 9:15 p.m.
Last Modified :
Sept. 10, 2020, 5:50 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
0.8
Affected Products
The following products are affected by CVE-2019-20795
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-2019-20795
.
URL | Resource |
---|---|
https://bugzilla.suse.com/show_bug.cgi?id=1171452 | Issue Tracking Third Party Advisory |
https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10 | Patch Third Party Advisory |
https://security.gentoo.org/glsa/202008-06 | Third Party Advisory |
https://usn.ubuntu.com/4357-1/ | Third Party Advisory |
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-2019-20795
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-20795
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.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Sep. 10, 2020
Action Type Old Value New Value Removed CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:N/A:P) Removed CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://security.gentoo.org/glsa/202008-06 No Types Assigned https://security.gentoo.org/glsa/202008-06 Third Party Advisory -
CVE Modified by [email protected]
Aug. 08, 2020
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202008-06 [No Types Assigned] -
Modified Analysis by [email protected]
May. 20, 2020
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://bugzilla.suse.com/show_bug.cgi?id=1171452 No Types Assigned https://bugzilla.suse.com/show_bug.cgi?id=1171452 Issue Tracking, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/4357-1/ No Types Assigned https://usn.ubuntu.com/4357-1/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* -
CVE Modified by [email protected]
May. 19, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4357-1/ [No Types Assigned] -
CVE Modified by [email protected]
May. 13, 2020
Action Type Old Value New Value Changed Description iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. iproute2 before 5.1.0 has a use-after-free in get_netnsid_from_name in ip/ipnetns.c. NOTE: security relevance may be limited to certain uses of setuid that, although not a default, are sometimes a configuration option offered to end users. Even when setuid is used, other factors (such as C library configuration) may block exploitability. Added Reference https://bugzilla.suse.com/show_bug.cgi?id=1171452 [No Types Assigned] -
Initial Analysis by [email protected]
May. 11, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10 No Types Assigned https://git.kernel.org/pub/scm/network/iproute2/iproute2.git/commit/?id=9bf2c538a0eb10d66e2365a655bf6c52f5ba3d10 Patch, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:a:iproute2_project:iproute2:*:*:*:*:*:*:*:* versions up to (excluding) 5.1.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-20795
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-2019-20795
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.05635
percentile