BIND 9 resolvers configured to answer from stale cache with zero stale-answer-client-timeout may terminate unexpectedly
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ISC | BIND9 | affected |
|
Configuration 1 [-]
|
Configuration 2 [-]
|
| Package | CPE | Advisory | Released Date |
|---|---|---|---|
| Red Hat Enterprise Linux 8 | |||
| bind9.16-32:9.16.23-0.7.el8_6.1 | cpe:/a:redhat:enterprise_linux:8 | RHSA-2022:6781 | 2022-10-04T00:00:00Z |
| Red Hat Enterprise Linux 9 | |||
| bind-32:9.16.23-1.el9_0.1 | cpe:/a:redhat:enterprise_linux:9 | RHSA-2022:6763 | 2022-10-03T00:00:00Z |
No data available yet.
Vendor Solution
Upgrade to the patched release most closely related to your current version of BIND: BIND 9.16.33, BIND 9.18.7, BIND 9.19.5, or for BIND Supported Preview Edition (a special feature preview branch of BIND provided to eligible ISC support customers): BIND 9.16.33-S1.
Vendor Workaround
Setting stale-answer-client-timeout to off or to an integer greater than 0 will prevent BIND from crashing due to this issue.
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-5235-1 | bind9 security update |
EUVD |
EUVD-2022-42509 | By sending specific queries to the resolver, an attacker can cause named to crash. |
Ubuntu USN |
USN-5626-1 | Bind vulnerabilities |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: 2.0% (2.005% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:isc:bind:9.16.14:-:*:*:*:*:*:* cpe:2.3:a:isc:bind:9.18.0:*:*:*:-:*:*:* cpe:2.3:a:isc:bind:9.19.0:*:*:*:-:*:*:* |
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| Metrics |
ssvc
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