Vulnerability Details : CVE-2021-46143
Potential exploit
In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize.
Vulnerability category: Overflow
Products affected by CVE-2021-46143
- cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
- cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_baseboard_management_controller:h610c:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_baseboard_management_controller:h610s:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_baseboard_management_controller:h615c:*:*:*:*:*:*:*
- cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:*
- cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:*
- cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-46143
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 37 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-46143
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
8.1
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
2.2
|
5.9
|
MITRE | |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-46143
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-46143
-
https://www.debian.org/security/2022/dsa-5073
Debian -- Security Information -- DSA-5073-1 expatThird Party Advisory
-
https://www.tenable.com/security/tns-2022-05
[R1] Nessus Versions 8.15.3 and 10.1.1 Fix Multiple Third-Party Vulnerabilities - Security Advisory | Tenable®Third Party Advisory
-
https://security.gentoo.org/glsa/202209-24
Expat: Multiple Vulnerabilities (GLSA 202209-24) — Gentoo securityThird Party Advisory
-
https://github.com/libexpat/libexpat/issues/532
Crafted XML file can cause integer overflow on m_groupSize in function doProlog · Issue #532 · libexpat/libexpat · GitHubExploit;Issue Tracking;Patch;Third Party Advisory
-
http://www.openwall.com/lists/oss-security/2022/01/17/3
oss-security - Expat 2.4.3 released, includes 8 security fixesMailing List;Patch;Third Party Advisory
-
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
Patch;Third Party Advisory
-
https://github.com/libexpat/libexpat/pull/538
[W.I.P.] lib: Prevent integer overflow on m_groupSize in function doProlog (fixes #532) by hartwork · Pull Request #538 · libexpat/libexpat · GitHubPatch;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20220121-0006/
CVE-2021-46143 Expat Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
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