7.5

CVE-2019-6467: isc bind Reachable Assertion

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2019-6467UBUNTU-CVE-2019-6467CGA-33p8-229m-wf97
Published 09-10-2019Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2019-6467 is a high (CVSS 7.5) Reachable Assertion vulnerability in isc bind. EPSS estimates a 5.46% chance of exploitation in the next 30 days, higher than 92.6% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
5.46%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 2
CGA-49QG-5RQV-GF7MCGA-5WFH-W6X9-V5RC

Timeline

  1. 09-10-2019
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

A programming error in the nxdomain-redirect feature can cause an assertion failure in query.c if the alternate namespace used by nxdomain-redirect is a descendant of a zone that is served locally. The most likely scenario where this might occur is if the server, in addition to performing NXDOMAIN redirection for recursive clients, is also serving a local copy of the root zone or using mirroring to provide the root zone, although other configurations are also possible. Versions affected: BIND 9.12.0-> 9.12.4, 9.14.0. Also affects all releases in the 9.13 development branch.

CVSS metrics

9 scores · 6 sources · 3 versions

EPSS trend

Probability

5.46%

Chance of exploitation in the next 30 days

Percentile

93%

Versus all other CVEs

30-day change

0.00 pp

From 5.46% on 19-09-2026

19-09-202619-10-2026
EPSS score
5.46%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Isc2 products
  • bind≥ 9.12.0, ≤ 9.12.4 | ≥ 9.13.0, ≤ 9.13.7 | 9.14.0
  • bind 9BIND 9.12.0-> 9.12.4, 9.14.0. Also affects all releases in the 9.13 development branch.
Alpine1 product
  • bind≥ 9.12.0, < 9.14.1-r0 | ≥ 9.12.0, < 9.11.6_p1-r0 | ≥ 9.12.0, < 9.12.4_p1-r0
Chainguard1 product
  • bindAll versions (No fix recorded)
Ubuntu1 product
  • bind9< 1:9.9.5.dfsg-3ubuntu0.19 | < 1:9.10.3.dfsg.P4-8ubuntu1.12 | < 1:9.11.3+dfsg-1ubuntu1.5
Wolfi1 product
  • bindAll versions (No fix recorded)

5 vendors · 6 products

References

5 links