CVE-2018-5737
BIND 9.12's serve-stale implementation can cause an assertion failure in rbtdb.c or other undesirable behavior, even if serve-stale is not enabled.
Published 7 y ago · modified 4 mo ago · JSON
Summary
A problem with the implementation of the new serve-stale feature in BIND 9.12 can lead to an assertion failure in rbtdb.c, even when stale-answer-enable is off. Additionally, problematic interaction between the serve-stale feature and NSEC aggressive negative caching can in some cases cause undesirable behavior from named, such as a recursion loop or excessive logging. Deliberate exploitation of this condition could cause operational problems depending on the particular manifestation -- either degradation or denial of service. Affects BIND 9.12.0 and 9.12.1.
Exploit prediction (EPSS)
10.63% probability of exploitation in the next 30 days, higher than 96% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| CNA | 3.0 | 5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.0 | 5.9 | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Affected products
- ISC BIND 9
Classification
- Weakness
- CWE-617 Reachable Assertion
References
- securityfocus.com /bid/104236 · vdb-entry, x_refsource_BID, x_transferred
- kb.isc.org /docs/aa-01606 · x_refsource_CONFIRM, x_transferred
- securitytracker.com /id/1040942 · vdb-entry, x_refsource_SECTRACK, x_transferred
- security.netapp.com /advisory/ntap-20180926-0004/ · x_refsource_CONFIRM, x_transferred
Sources
- CVE List: CVE-2018-5737
- NVD: CVE-2018-5737
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.