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ubuntuUbuntuUSN-4929-1
HistoryApr 29, 2021 - 12:00 a.m.

Bind vulnerabilities

2021-04-2900:00:00
ubuntu.com
128

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

8.4 High

AI Score

Confidence

High

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.336 Low

EPSS

Percentile

97.0%

Releases

  • Ubuntu 21.04
  • Ubuntu 20.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • bind9 - Internet Domain Name Server

Details

Greg Kuechle discovered that Bind incorrectly handled certain incremental
zone updates. A remote attacker could possibly use this issue to cause Bind
to crash, resulting in a denial of service. (CVE-2021-25214)

Siva Kakarla discovered that Bind incorrectly handled certain DNAME
records. A remote attacker could possibly use this issue to cause Bind to
crash, resulting in a denial of service. (CVE-2021-25215)

It was discovered that Bind incorrectly handled GSSAPI security policy
negotiation. A remote attacker could use this issue to cause Bind to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2021-25216)

OSVersionArchitecturePackageVersionFilename
Ubuntu21.04noarchbind9< 1:9.16.8-1ubuntu3.1UNKNOWN
Ubuntu21.04noarchbind9-dbgsym< 1:9.16.8-1ubuntu3.1UNKNOWN
Ubuntu21.04noarchbind9-dev< 1:9.16.8-1ubuntu3.1UNKNOWN
Ubuntu21.04noarchbind9-dnsutils< 1:9.16.8-1ubuntu3.1UNKNOWN
Ubuntu21.04noarchbind9-dnsutils-dbgsym< 1:9.16.8-1ubuntu3.1UNKNOWN
Ubuntu21.04noarchbind9-doc< 1:9.16.8-1ubuntu3.1UNKNOWN
Ubuntu21.04noarchbind9-host< 1:9.16.8-1ubuntu3.1UNKNOWN
Ubuntu21.04noarchbind9-host-dbgsym< 1:9.16.8-1ubuntu3.1UNKNOWN
Ubuntu21.04noarchbind9-libs< 1:9.16.8-1ubuntu3.1UNKNOWN
Ubuntu21.04noarchbind9-libs-dbgsym< 1:9.16.8-1ubuntu3.1UNKNOWN
Rows per page:
1-10 of 1291

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

8.4 High

AI Score

Confidence

High

6.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

0.336 Low

EPSS

Percentile

97.0%