CVE-2020-35505
QEMU am53c974 SCSI Host Bus Adapter Emulation NULL Pointer Dereference Denial of Service
Description
A NULL pointer dereference flaw was found in the am53c974 SCSI host bus adapter emulation of QEMU in versions before 6.0.0. This issue occurs while handling the 'Information Transfer' command. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
INFO
Published Date :
May 28, 2021, 11:15 a.m.
Last Modified :
Sept. 22, 2022, 9:03 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
0.8
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-2020-35505.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/04/16/3 | Mailing List Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1909769 | Issue Tracking Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html | Mailing List Third Party Advisory |
| https://security.gentoo.org/glsa/202208-27 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20210713-0006/ | Third Party Advisory |
| https://www.openwall.com/lists/oss-security/2021/04/16/3 | Mailing List Patch 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-2020-35505 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-35505 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. 22, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html Mailing List, Third Party Advisory Changed Reference Type https://security.gentoo.org/glsa/202208-27 No Types Assigned https://security.gentoo.org/glsa/202208-27 Third Party Advisory Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Sep. 05, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/09/msg00008.html [No Types Assigned] -
CVE Modified by [email protected]
Aug. 15, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202208-27 [No Types Assigned] -
Modified Analysis by [email protected]
May. 13, 2022
Action Type Old Value New Value Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1909769 Issue Tracking, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=1909769 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20210713-0006/ No Types Assigned https://security.netapp.com/advisory/ntap-20210713-0006/ Third Party Advisory -
CVE Modified by [email protected]
Jul. 13, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210713-0006/ [No Types Assigned] -
Reanalysis by [email protected]
Jun. 14, 2021
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 6.0.0 *cpe:2.3:a:qemu:qemu:6.0.0:-:*:*:*:*:*:* OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 6.0.0 *cpe:2.3:a:qemu:qemu:6.0.0:rc1:*:*:*:*:*:* *cpe:2.3:a:qemu:qemu:6.0.0:rc2:*:*:*:*:*:* -
Initial Analysis by [email protected]
Jun. 08, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2021/04/16/3 No Types Assigned http://www.openwall.com/lists/oss-security/2021/04/16/3 Mailing List, Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=1909769 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1909769 Issue Tracking, Third Party Advisory Changed Reference Type https://www.openwall.com/lists/oss-security/2021/04/16/3 No Types Assigned https://www.openwall.com/lists/oss-security/2021/04/16/3 Mailing List, Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* versions up to (excluding) 6.0.0 *cpe:2.3:a:qemu:qemu:6.0.0:-:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-35505 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-2020-35505
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
0.12065
percentile