CVE-2021-3520
Lz4 Memory Corruption Vulnerability
Description
There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well.
INFO
Published Date :
June 2, 2021, 1:15 p.m.
Last Modified :
June 6, 2024, 8:25 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-3520
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-2021-3520.
| URL | Resource |
|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1954559 | Issue Tracking Patch Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20211104-0005/ | Third Party Advisory |
| https://www.oracle.com//security-alerts/cpujul2021.html | Patch Third Party Advisory |
| https://www.oracle.com/security-alerts/cpuapr2022.html | Patch Third Party Advisory |
| https://www.oracle.com/security-alerts/cpuoct2021.html | 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-2021-3520 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3520 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.
-
Reanalysis by [email protected]
Jun. 06, 2024
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:lz4_project:lz4:1.8.3:*:*:*:*:*:*:* OR *cpe:2.3:a:lz4_project:lz4:*:*:*:*:*:*:*:* versions from (including) 1.8.3 up to (excluding) 1.9.4 Changed CPE Configuration OR *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* OR *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Mar. 27, 2024
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* versions from (including) 8.2.0 up to (excluding) 8.2.12 *cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* versions from (including) 9.0.0 up to (excluding) 9.0.6 *cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Removed CWE Red Hat, Inc. CWE-787 -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value Removed CVSS V3.1 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H Removed Reference https://access.redhat.com/errata/RHBA-2021:2854 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2021:2575 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2022:1345 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2022:5606 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2022:6407 [No Types Assigned] Removed Reference https://access.redhat.com/security/cve/CVE-2021-3520 [No Types Assigned] Added CWE Red Hat, Inc. CWE-787 Added CWE Red Hat, Inc. CWE-190 -
CVE Modified by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Added CVSS V3.1 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H Added Reference https://access.redhat.com/errata/RHBA-2021:2854 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2022:6407 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2022:1345 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2022:5606 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2021:2575 [No Types Assigned] Added Reference https://access.redhat.com/security/cve/CVE-2021-3520 [No Types Assigned] Removed CWE Red Hat, Inc. CWE-787 Removed CWE Red Hat, Inc. CWE-190 -
Modified Analysis by [email protected]
Sep. 03, 2022
Action Type Old Value New Value Changed Reference Type https://www.oracle.com/security-alerts/cpuapr2022.html No Types Assigned https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory Changed CPE Configuration OR *cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* OR *cpe:2.3:a:oracle:communications_cloud_native_core_policy:1.14.0:*:*:*:*:*:*:* *cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 20, 2022
Action Type Old Value New Value Added Reference https://www.oracle.com/security-alerts/cpuapr2022.html [No Types Assigned] -
Modified Analysis by [email protected]
Nov. 28, 2021
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20211104-0005/ No Types Assigned https://security.netapp.com/advisory/ntap-20211104-0005/ Third Party Advisory Changed Reference Type https://www.oracle.com//security-alerts/cpujul2021.html No Types Assigned https://www.oracle.com//security-alerts/cpujul2021.html Patch, Third Party Advisory Changed Reference Type https://www.oracle.com/security-alerts/cpuoct2021.html No Types Assigned https://www.oracle.com/security-alerts/cpuoct2021.html Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:* *cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Nov. 17, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20211104-0005/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 10, 2021
Action Type Old Value New Value Removed Reference https://security.netapp.com/advisory/ntap-20211104-0005/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 04, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20211104-0005/ [No Types Assigned] -
CVE Modified by [email protected]
Oct. 20, 2021
Action Type Old Value New Value Added Reference https://www.oracle.com/security-alerts/cpuoct2021.html [No Types Assigned] -
CVE Modified by [email protected]
Jul. 20, 2021
Action Type Old Value New Value Added Reference https://www.oracle.com//security-alerts/cpujul2021.html [No Types Assigned] -
Initial Analysis by [email protected]
Jun. 11, 2021
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://bugzilla.redhat.com/show_bug.cgi?id=1954559 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=1954559 Issue Tracking, Patch, Third Party Advisory Added CWE NIST CWE-787 Added CWE NIST CWE-190 Added CPE Configuration OR *cpe:2.3:a:lz4_project:lz4:1.8.3:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3520 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-2021-3520
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} 0.02%
score
0.49616
percentile