QID 376031

QID 376031: F5 BIG-IP Application Security Manager (ASM), Local Traffic Manager (LTM), Access Policy Manager (APM) BIND Vulnerability (K77326807)

In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.CVE-2021-25219

Vulnerable Component: BIG-IP ASM,LTM,APM

Affected Versions:
16.1.0 - 16.1.2
15.1.0 - 15.1.4
14.1.0 - 14.1.4
13.1.0 - 13.1.4
12.1.0 - 12.1.6
11.6.1 - 11.6.5

QID Detection Logic(Authenticated):
This QID checks for the vulnerable versions of F5 BIG-IP devices using the tmsh command.

This vulnerability could be abused by an attacker to significantly degrade resolver performance.

CVSS V3 rated as Medium - 5.3 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

The vendor has released patch, for more information please visit: K77326807

Vendor References

K77326807 - support.f5.com/csp/article/K77326807

CVEs related to QID 376031

CVE-2021-25219 |

Software Advisories

Advisory ID	Software	Component	Link
K77326807			support.f5.com/csp/article/K77326807

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