Denial of Service Vulnerability in ISC BIND by ISC
CVE-2016-6170

6.5MEDIUM

Key Information:

Vendor

Isc
Status
Bind
Vendor
CVE Published:
6 July 2016

What is CVE-2016-6170?

ISC BIND versions prior to 9.11.0b1 are susceptible to denial of service attacks due to large AXFR and IXFR responses that can crash secondary DNS servers. Remote authenticated users can exploit this by sending oversized UPDATE messages to primary DNS servers, potentially causing crashes. This vulnerability emphasizes the need for careful configuration and monitoring of DNS servers to mitigate risks.

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References

https://lists.dns-oarc.net/pipermail/dns-operations/2016-...
mailing-listx_refsource_MLIST
https://lists.dns-oarc.net/pipermail/dns-operations/2016-...
mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2016/07/06/3
mailing-listx_refsource_MLIST

EPSS Score

13% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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