Strix
26.1K

CVE-2019-6471

MEDIUMCVSS 5.9/10EPSS 3.27%

Last modified

CVE-2019-6471 is a medium-severity vulnerability rated 5.9/10 on the CVSS scale. A race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch.c. Versions affected: BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. EPSS estimates a 3.27% chance of exploitation in the next 30 days.

Description

A race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch.c. Versions affected: BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -> 9.11.7-S1.

Metrics

CVSS 3.1
5.9/10

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

EPSS Probability
3.27%

86.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersionsUpdate
F5Big-Ip Local Traffic Manager>= 11.5.2, <= 11.5.9—
F5Big-Ip Local Traffic Manager>= 11.6.1, <= 11.6.4—
F5Big-Ip Local Traffic Manager>= 12.1.0, <= 12.1.4—
F5Big-Ip Local Traffic Manager>= 13.1.0, <= 13.1.1—
F5Big-Ip Local Traffic Manager14.0.0—
F5Big-Ip Local Traffic Manager14.1.0—
F5Big-Ip Local Traffic Manager15.0.0—
F5Big-Ip Application Acceleration Manager>= 11.5.2, <= 11.5.9—
F5Big-Ip Application Acceleration Manager>= 11.6.1, <= 11.6.4—
F5Big-Ip Application Acceleration Manager>= 12.1.0, <= 12.1.4—
F5Big-Ip Application Acceleration Manager>= 13.1.0, <= 13.1.1—
F5Big-Ip Application Acceleration Manager14.0.0—
F5Big-Ip Application Acceleration Manager14.1.0—
F5Big-Ip Application Acceleration Manager15.0.0—
F5Big-Ip Advanced Firewall Manager>= 11.5.2, <= 11.5.9—
F5Big-Ip Advanced Firewall Manager>= 11.6.1, <= 11.6.4—
F5Big-Ip Advanced Firewall Manager>= 12.1.0, <= 12.1.4—
F5Big-Ip Advanced Firewall Manager>= 13.1.0, <= 13.1.1—
F5Big-Ip Advanced Firewall Manager14.0.0—
F5Big-Ip Advanced Firewall Manager14.1.0—
F5Big-Ip Advanced Firewall Manager15.0.0—
F5Big-Ip Analytics>= 11.5.2, <= 11.5.9—
F5Big-Ip Analytics>= 11.6.1, <= 11.6.4—
F5Big-Ip Analytics>= 12.1.0, <= 12.1.4—
F5Big-Ip Analytics>= 13.1.0, <= 13.1.1—
F5Big-Ip Analytics14.0.0—
F5Big-Ip Analytics14.1.0—
F5Big-Ip Analytics15.0.0—
F5Big-Ip Access Policy Manager>= 11.5.2, <= 11.5.9—
F5Big-Ip Access Policy Manager>= 11.6.1, <= 11.6.4—
F5Big-Ip Access Policy Manager>= 12.1.0, <= 12.1.4—
F5Big-Ip Access Policy Manager>= 13.1.0, <= 13.1.1—
F5Big-Ip Access Policy Manager14.0.0—
F5Big-Ip Access Policy Manager14.1.0—
F5Big-Ip Access Policy Manager15.0.0—
F5Big-Ip Application Security Manager>= 11.5.2, <= 11.5.9—
F5Big-Ip Application Security Manager>= 11.6.1, <= 11.6.4—
F5Big-Ip Application Security Manager>= 12.1.0, <= 12.1.4—
F5Big-Ip Application Security Manager>= 13.1.0, <= 13.1.1—
F5Big-Ip Application Security Manager14.0.0—
F5Big-Ip Application Security Manager14.1.0—
F5Big-Ip Application Security Manager15.0.0—
F5Big-Ip Edge Gateway>= 11.5.2, <= 11.5.9—
F5Big-Ip Edge Gateway>= 11.6.1, <= 11.6.4—
F5Big-Ip Edge Gateway>= 12.1.0, <= 12.1.4—
F5Big-Ip Edge Gateway>= 13.1.0, <= 13.1.1—
F5Big-Ip Edge Gateway14.0.0—
F5Big-Ip Edge Gateway14.1.0—
F5Big-Ip Edge Gateway15.0.0—
F5Big-Ip Fraud Protection Service>= 11.5.2, <= 11.5.9—

Showing 50 of 108 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-6471?
A race condition which may occur when discarding malformed packets can result in BIND exiting due to a REQUIRE assertion failure in dispatch.c. Versions affected: BIND 9.11.0 -> 9.11.7, 9.12.0 -> 9.12.4-P1, 9.14.0 -> 9.14.2. Also all releases of the BIND 9.13 development branch and version 9.15.0 of the BIND 9.15 development branch and BIND Supported Preview Edition versions 9.11.3-S1 -> 9.11.7-S1.
How severe is CVE-2019-6471?
CVE-2019-6471 has a CVSS score of 5.9/10 (MEDIUM severity). The EPSS model estimates a 3.27% probability of exploitation in the next 30 days.
How do I fix CVE-2019-6471?
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-2019-6471?

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

Scan your code now

Source: NVD / NIST