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ubuntuUbuntuUSN-5355-2
HistoryMar 30, 2022 - 12:00 a.m.

zlib vulnerability

2022-03-3000:00:00
ubuntu.com
129
ubuntu
zlib
vulnerability
patched
esm
32 bit runtime
denial of service
arbitrary code
security

CVSS2

5

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

CVSS3

7.5

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

AI Score

8

Confidence

High

EPSS

0.003

Percentile

68.4%

Releases

  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • zlib - compression library - 32 bit runtime

Details

USN-5355-1 fixed a vulnerability in zlib. This update provides
the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.

Original advisory 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
Ubuntu16.04noarchlib64z1< 1:1.2.8.dfsg-2ubuntu4.3+esm1UNKNOWN
Ubuntu16.04noarchlib32z1< 1:1.2.8.dfsg-2ubuntu4.3UNKNOWN
Ubuntu16.04noarchlib32z1-dbgsym< 1:1.2.8.dfsg-2ubuntu4.3UNKNOWN
Ubuntu16.04noarchlib32z1-dev< 1:1.2.8.dfsg-2ubuntu4.3UNKNOWN
Ubuntu16.04noarchlib32z1-dev-dbgsym< 1:1.2.8.dfsg-2ubuntu4.3UNKNOWN
Ubuntu16.04noarchlibx32z1< 1:1.2.8.dfsg-2ubuntu4.3UNKNOWN
Ubuntu16.04noarchlibx32z1-dbgsym< 1:1.2.8.dfsg-2ubuntu4.3UNKNOWN
Ubuntu16.04noarchlibx32z1-dev< 1:1.2.8.dfsg-2ubuntu4.3UNKNOWN
Ubuntu16.04noarchlibx32z1-dev-dbgsym< 1:1.2.8.dfsg-2ubuntu4.3UNKNOWN
Ubuntu16.04noarchzlib1g< 1:1.2.8.dfsg-2ubuntu4.3UNKNOWN
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CVSS2

5

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

CVSS3

7.5

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

AI Score

8

Confidence

High

EPSS

0.003

Percentile

68.4%