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ubuntuUbuntuUSN-5355-1
HistoryMar 30, 2022 - 12:00 a.m.

zlib vulnerability

2022-03-3000:00:00
ubuntu.com
202

5 Medium

CVSS2

Attack Vector

NETWORK

Attack 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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

68.4%

Releases

  • Ubuntu 21.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • zlib - Lossless data-compression library

Details

Danilo Ramos discovered that zlib incorrectly handled memory when
performing certain deflating operations. An attacker could use this issue
to cause zlib to crash, resulting in a denial of service, or possibly
execute arbitrary code.

OSVersionArchitecturePackageVersionFilename
Ubuntu21.10noarchlib64z1< 1:1.2.11.dfsg-2ubuntu7.1UNKNOWN
Ubuntu21.10noarchlib32z1< 1:1.2.11.dfsg-2ubuntu7.1UNKNOWN
Ubuntu21.10noarchlib32z1-dbgsym< 1:1.2.11.dfsg-2ubuntu7.1UNKNOWN
Ubuntu21.10noarchlib32z1-dev< 1:1.2.11.dfsg-2ubuntu7.1UNKNOWN
Ubuntu21.10noarchlibx32z1< 1:1.2.11.dfsg-2ubuntu7.1UNKNOWN
Ubuntu21.10noarchlibx32z1-dbgsym< 1:1.2.11.dfsg-2ubuntu7.1UNKNOWN
Ubuntu21.10noarchlibx32z1-dev< 1:1.2.11.dfsg-2ubuntu7.1UNKNOWN
Ubuntu21.10noarchzlib1g< 1:1.2.11.dfsg-2ubuntu7.1UNKNOWN
Ubuntu21.10noarchzlib1g-dbgsym< 1:1.2.11.dfsg-2ubuntu7.1UNKNOWN
Ubuntu21.10noarchzlib1g-dev< 1:1.2.11.dfsg-2ubuntu7.1UNKNOWN
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5 Medium

CVSS2

Attack Vector

NETWORK

Attack 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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8 High

AI Score

Confidence

High

0.003 Low

EPSS

Percentile

68.4%