02 Records
FEED: ACQUIRING
01 RecordSTATE: PUBLISHED
02 Description
CNA: iscAn assertion failure can occur if a trust anchor rolls over to an unsupported key algorithm when using managed-keys
03 Exploitation and scoring
SRC: CISA, FIRST, NVD, RED HAT- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.28% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Ranks above 81.6% of scored records. A rank, not a probability.
- NVD base score
- 4.9 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-09-01.
- Red Hat severity
- Low. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
SCHEMA: 5.1
- Published
- 2019-10-09 14:17Z6 YR AGO
- Last updated
- 2024-09-16 23:51Z1 YR AGO
- Reserved
- 2018-01-17
- Assigning CNA
- isc
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 4.9)
- CNA CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-327Use of a Broken or Risky Cryptographic AlgorithmClass
- CWE-617Reachable AssertionBase
- Data version
- 5.1
- Document digest
- fd4a5b3cc3399b9664aaf27c23c5502d2a33da1332e79363ab67dea5eccd659c
05 Affected products
PAIRS: 1VendorProductVersionsPlatforms
ISCBIND 9BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.5-P1, 9.12.0 -> 9.12.3-P1, and versions 9.9.3-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2018-5745.— SRC: CNA
Upgrade to a version of BIND containing a fix preventing the assertion failure.
>= BIND 9.11.5-P4
>= BIND 9.12.3-P4
BIND Supported Preview Edition is a special feature preview branch of BIND provided to eligible ISC support customers.
>= BIND 9.11.5-S5