CVE-2019-6468: isc bind Reachable Assertion
Vulnerability summary
CVE-2019-6468 is a high (CVSS 7.5) Reachable Assertion vulnerability in isc bind. EPSS estimates a 2.56% chance of exploitation in the next 30 days, higher than 84.8% of scored vulnerabilities.
Timeline
- 09-10-2019PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
In BIND Supported Preview Edition, an error in the nxdomain-redirect feature can occur in versions which support EDNS Client Subnet (ECS) features. In those versions which have ECS support, enabling nxdomain-redirect is likely to lead to BIND exiting due to assertion failure. Versions affected: BIND Supported Preview Edition version 9.10.5-S1 -> 9.11.5-S5. ONLY BIND Supported Preview Edition releases are affected.
CVSS metrics
6 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVDNIST5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS trend
Probability
2.56%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
0.00 pp
From 2.56% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Isc2 products
- bind9.10.5:s1 | 9.11.5:s5
- bind 9 supported preview editionBIND 9 9.10.5-S1 -> 9.11.5-S5
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
2 vendors · 3 products
References
4 links- www.synology.com/security/advisory/Synology_SA_19_20X Refsource CONFIRM