High severity · published Jan 6, 2022
CVE-2021-43045
A vulnerability in the .NET SDK of Apache Avro allows an attacker to allocate excessive resources, potentially causing a denial-of-service attack
7.5
CVSS
3%
EPSS
No
On KEV
Description
A vulnerability in the .NET SDK of Apache Avro allows an attacker to allocate excessive resources, potentially causing a denial-of-service attack. This issue affects .NET applications using Apache Avro version 1.10.2 and prior versions. Users should update to version 1.11.0 which addresses this issue.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.0% · higher than 87% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AV
Avro · Apache
before 1.11.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43045
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43045
Mailing List
http://www.openwall.com/lists/oss-security/2022/01/06/8
Mailing List
https://lists.apache.org/thread/5fttw9vk6gd2p3b846nox7hcj5469xfd
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