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ubuntucveUbuntu.comUB:CVE-2022-2795
HistorySep 21, 2022 - 12:00 a.m.

CVE-2022-2795

2022-09-2100:00:00
ubuntu.com
ubuntu.com
13

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

6.8 Medium

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

55.4%

By flooding the target resolver with queries exploiting this flaw an
attacker can significantly impair the resolver’s performance, effectively
denying legitimate clients access to the DNS resolution service.

Notes

Author Note
alexmurray As of isc-dhcp-4.4.3-1, isc-dhcp vendors bind9 libs
mdeslaur This is unlikely to affect isc-dhcp’s use of bind9-libs and the vendored bind9 libs, marking as negligible
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchbind9< 1:9.11.3+dfsg-1ubuntu1.18UNKNOWN
ubuntu20.04noarchbind9< 1:9.16.1-0ubuntu2.11UNKNOWN
ubuntu22.04noarchbind9< 1:9.18.1-1ubuntu1.2UNKNOWN
ubuntu22.10noarchbind9< 1:9.18.4-2ubuntu2UNKNOWN
ubuntu23.04noarchbind9< 1:9.18.4-2ubuntu2UNKNOWN
ubuntu23.10noarchbind9< 1:9.18.4-2ubuntu2UNKNOWN
ubuntu14.04noarchbind9< 1:9.9.5.dfsg-3ubuntu0.19+esm7) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchbind9< 1:9.10.3.dfsg.P4-8ubuntu1.19+esm3) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu20.04noarchbind9-libs< anyUNKNOWN
ubuntu22.04noarchbind9-libs< anyUNKNOWN
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5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

6.8 Medium

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

55.4%