Medium [CVE-2021-23047] BIG-IP: On version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, and all versions of 13.1.x, 12.1.x and 11.6.x
This medium-severity F5 advisory covers CVE-2021-23047 affecting BIG-IP, APM.
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Summary
On version 16.x before 16.1.0, 15.1.x before 15.1.3.1, 14.1.x before 14.1.4.3, and all versions of 13.1.x, 12.1.x and 11.6.x, when BIG-IP APM performs Online Certificate Status Protocol (OCSP) verification of a certificate that contains Authority Information Access (AIA), undisclosed requests may cause an increase in memory use.
Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
- 15.1.x
- 14.1.x
- all versions
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- 16.1.0
- 15.1.3.1
- 14.1.4.3
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation
Upgrade to a fixed release: 16.1.0, 15.1.3.1, 14.1.4.3. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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