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CVE-2020-5926

HIGHCVSS 7.5/10EPSS 1.04%

Last modified

CVE-2020-5926 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. In BIG-IP versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, and 14.1.0-14.1.2.6, a BIG-IP virtual server with a Session Initiation Protocol (SIP) ALG profile, parsing SIP messages that contain a multi-part MIME payload with certain boundary strings can cause TMM to free memory to the wrong cache.. EPSS estimates a 1.04% chance of exploitation in the next 30 days.

Description

In BIG-IP versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, and 14.1.0-14.1.2.6, a BIG-IP virtual server with a Session Initiation Protocol (SIP) ALG profile, parsing SIP messages that contain a multi-part MIME payload with certain boundary strings can cause TMM to free memory to the wrong cache.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
1.04%

59.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
F5Big-Ip Access Policy Manager>= 14.1.0, < 14.1.2.7
F5Big-Ip Access Policy Manager>= 15.0.0, < 15.0.1.4
F5Big-Ip Access Policy Manager>= 15.1.0, < 15.1.0.5
F5Big-Ip Advanced Firewall Manager>= 14.1.0, < 14.1.2.7
F5Big-Ip Advanced Firewall Manager>= 15.0.0, < 15.0.1.4
F5Big-Ip Advanced Firewall Manager>= 15.1.0, < 15.1.0.5
F5Big-Ip Analytics>= 14.1.0, < 14.1.2.7
F5Big-Ip Analytics>= 15.0.0, < 15.0.1.4
F5Big-Ip Analytics>= 15.1.0, < 15.1.0.5
F5Big-Ip Application Acceleration Manager>= 14.1.0, < 14.1.2.7
F5Big-Ip Application Acceleration Manager>= 15.0.0, < 15.0.1.4
F5Big-Ip Application Acceleration Manager>= 15.1.0, < 15.1.0.5
F5Big-Ip Application Security Manager>= 14.1.0, < 14.1.2.7
F5Big-Ip Application Security Manager>= 15.0.0, < 15.0.1.4
F5Big-Ip Application Security Manager>= 15.1.0, < 15.1.0.5
F5Big-Ip Domain Name System>= 14.1.0, < 14.1.2.7
F5Big-Ip Domain Name System>= 15.0.0, < 15.0.1.4
F5Big-Ip Domain Name System>= 15.1.0, < 15.1.0.5
F5Big-Ip Fraud Protection Service>= 14.1.0, < 14.1.2.7
F5Big-Ip Fraud Protection Service>= 15.0.0, < 15.0.1.4
F5Big-Ip Fraud Protection Service>= 15.1.0, < 15.1.0.5
F5Big-Ip Global Traffic Manager>= 14.1.0, < 14.1.2.7
F5Big-Ip Global Traffic Manager>= 15.0.0, < 15.0.1.4
F5Big-Ip Global Traffic Manager>= 15.1.0, < 15.1.0.5
F5Big-Ip Link Controller>= 14.1.0, < 14.1.2.7
F5Big-Ip Link Controller>= 15.0.0, < 15.0.1.4
F5Big-Ip Link Controller>= 15.1.0, < 15.1.0.5
F5Big-Ip Local Traffic Manager>= 14.1.0, < 14.1.2.7
F5Big-Ip Local Traffic Manager>= 15.0.0, < 15.0.1.4
F5Big-Ip Local Traffic Manager>= 15.1.0, < 15.1.0.5
F5Big-Ip Policy Enforcement Manager>= 14.1.0, < 14.1.2.7
F5Big-Ip Policy Enforcement Manager>= 15.0.0, < 15.0.1.4
F5Big-Ip Policy Enforcement Manager>= 15.1.0, < 15.1.0.5

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-5926?
In BIG-IP versions 15.1.0-15.1.0.4, 15.0.0-15.0.1.3, and 14.1.0-14.1.2.6, a BIG-IP virtual server with a Session Initiation Protocol (SIP) ALG profile, parsing SIP messages that contain a multi-part MIME payload with certain boundary strings can cause TMM to free memory to the wrong cache.
How severe is CVE-2020-5926?
CVE-2020-5926 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.04% probability of exploitation in the next 30 days.
How do I fix CVE-2020-5926?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-5926?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST