QID 376582

Date Published: 2022-05-09

QID 376582: F5 BIG-IP Application Security Manager (ASM), Local Traffic Manager (LTM), Access Policy Manager (APM) Expat Vulnerability (K23231802)

In doProlog in xmlparse.c in Expat (aka libexpat) before 2.4.3, an integer overflow exists for m_groupSize. (CVE-2021-46143)

Vulnerable Component: BIG-IP ASM,LTM,APM

Affected Versions:
17.0.0
16.1.0 - 16.1.2
15.1.0 - 15.1.5
14.1.0 - 14.1.4
13.1.0 - 13.1.5
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.

A remote attacker could send specially crafted XML which, when parsed by an application using the Expat library, would result in a buffer over-read and cause the application to stop responding.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as High - 6.8 severity.
    • Solution
    For more information about patch details please refer to K23231802
    Vendor References

    CVEs related to QID 376582

    CVE-2021-46143 |
    Software Advisories
    Advisory ID Software Component Link
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