CVE-2021-3593
QEMU SLiRP UDP Pointer Vulnerability
Description
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the udp6_input() function and could occur while processing a udp packet that is smaller than the size of the 'udphdr' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
INFO
Published Date :
June 15, 2021, 9:15 p.m.
Last Modified :
Nov. 7, 2023, 3:38 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
1.4
Exploitability Score :
2.0
Affected Products
The following products are affected by CVE-2021-3593
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-2021-3593.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1970487 | Issue Tracking Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html | Mailing List Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/ | |
| https://security.gentoo.org/glsa/202107-44 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210805-0004/ | 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-2021-3593 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3593 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 -
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/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/ [No types assigned] Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/ [No types assigned] Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/ -
CVE Modified by [email protected]
Mar. 15, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/03/msg00013.html [No Types Assigned] -
Modified Analysis by [email protected]
May. 13, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html Mailing List, Third Party Advisory Added CWE NIST CWE-824 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 04, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/04/msg00002.html [No Types Assigned] -
Modified Analysis by [email protected]
Sep. 20, 2021
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/ Mailing List, Third Party Advisory Changed Reference Type https://security.gentoo.org/glsa/202107-44 No Types Assigned https://security.gentoo.org/glsa/202107-44 Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20210805-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20210805-0004/ Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 05, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210805-0004/ [No Types Assigned] -
CVE Modified by [email protected]
Jul. 20, 2021
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202107-44 [No Types Assigned] -
CVE Modified by [email protected]
Jul. 04, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/ [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 23, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1970487 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1970487 Issue Tracking, Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:libslirp_project:libslirp:*:*:*:*:*:*:*:* versions up to (excluding) 4.6.0 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3593 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-2021-3593
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.12934
percentile