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Mageia: 2021-0221 Moderate: DNS Server Overflow Vulnerabilities

mageia
Calendar Grey May 23, 2021
Dist Mageia Esm H88
Mageia 2021-0220 introduces crucial updates for BIND, resolving significant security vulnerabilities to thwart potential threats. Discover further details here.
A broken inbound incremental zone update (IXFR) can cause named to terminate unexpectedly(CVE-2021-25214)

Summary

A broken inbound incremental zone update (IXFR) can cause named to terminate unexpectedly(CVE-2021-25214). Mageia 7 version not affected.
An assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itself (CVE-2021-25215). This affects both versions.
A second vulnerability in BIND's GSSAPI security policy negotiation can be targeted by a buffer overflow attack (CVE-2021-25216). Mageia 7 version not affected.

References

- https://bugs.mageia.org/show_bug.cgi?id=28873

- https://access.redhat.com/errata/RHSA-2021:1469

- https://kb.isc.org/v1/docs/cve-2021-25214

- https://kb.isc.org/v1/docs/cve-2021-25215

- https://kb.isc.org/v1/docs/cve-2021-25216

- https://www.openwall.com/lists/oss-security/2021/04/29/1

- https://www.cve.org/CVERecord?id=CVE-2021-25214

- https://www.cve.org/CVERecord?id=CVE-2021-25215

- https://www.cve.org/CVERecord?id=CVE-2021-25216

Topics%20covered

Topics Covered

security advisory buffer overflow critical issues BIND GSSAPI Mageia DNAME

Resolution

SRPMS

- 7/core/bind-9.11.6-1.4.mga7

- 8/core/bind-9.11.31-1.1.mga8

Severity
important
Lowest
Low
Medium
High
Critical

Publication date: 23 May 2021
URL: https://advisories.mageia.org/MGASA-2021-0220.html
Type: security
CVE: CVE-2021-25214, CVE-2021-25215, CVE-2021-25216

Topics%20covered

Topics Covered

security advisory buffer overflow critical issues BIND GSSAPI Mageia DNAME

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