MGASA-2021-0220 - Updated bind packages fix security vulnerabilities

Publication date: 23 May 2021
URL: https://advisories.mageia.org/MGASA-2021-0220.html
Type: security
Affected Mageia releases: 7, 8
CVE: CVE-2021-25214,
     CVE-2021-25215,
     CVE-2021-25216

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://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25214
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25215
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25216

SRPMS:
- 7/core/bind-9.11.6-1.4.mga7
- 8/core/bind-9.11.31-1.1.mga8