MEDIUM

GHSA-f9fr-w54q-772h

Apache log4net format string vulnerability causes DoS

Quick fix

GHSA-f9fr-w54q-772h — log4net: upgrade to the fixed version with the command below.

dotnet add package log4net --version 1.2.10

Details

Format string vulnerability in LocalSyslogAppender in Apache log4net 1.2.9 might allow remote attackers to cause a denial of service (memory corruption and termination) via unknown vectors.

Are you affected?

Enter the version of the package you're using.

Affected packages

NuGet/log4net

Introduced in: 0Fixed in: 1.2.10

Fixdotnet add package log4net --version 1.2.10

References

https://nvd.nist.gov/vuln/detail/CVE-2006-0743[ADVISORY]
https://github.com/apache/logging-log4net/commit/ea3faab25fe5f1d4dbda9f5da8dcfa6fc3d9e1b8[WEB]
https://exchange.xforce.ibmcloud.com/vulnerabilities/25196[WEB]
https://github.com/apache/logging-log4net[PACKAGE]
https://web.archive.org/web/20070114054835/http://www.novell.com/linux/security/advisories/2006_26_sr.html[WEB]
https://web.archive.org/web/20140304060609/https://issues.apache.org/jira/browse/LOG4NET-67[WEB]
https://web.archive.org/web/20200229022118/http://www.securityfocus.com/bid/17095[WEB]