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ubuntuUbuntuUSN-5378-3
HistoryApr 13, 2022 - 12:00 a.m.

XZ Utils vulnerability

2022-04-1300:00:00
ubuntu.com
75

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.2 High

AI Score

Confidence

High

6.5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.005 Low

EPSS

Percentile

76.3%

Releases

  • Ubuntu 16.04 ESM
  • Ubuntu 14.04 ESM

Packages

  • xz-utils - XZ-format compression utilities

Details

USN-5378-2 fixed a vulnerability in XZ Utils. This update provides
the corresponding update for Ubuntu 14.04 ESM and 16.04 ESM.

Original advisory details:

Cleemy Desu Wayo discovered that Gzip incorrectly handled certain
filenames. If a user or automated system were tricked into performing zgrep
operations with specially crafted filenames, a remote attacker could
overwrite arbitrary files.

OSVersionArchitecturePackageVersionFilename
Ubuntu16.04noarchxz-utils< 5.1.1alpha+20120614-2ubuntu2.16.04.1+esm1UNKNOWN
Ubuntu16.04noarchliblzma-dev< 5.1.1alpha+20120614-2ubuntu2UNKNOWN
Ubuntu16.04noarchliblzma5< 5.1.1alpha+20120614-2ubuntu2UNKNOWN
Ubuntu16.04noarchliblzma5-dbgsym< 5.1.1alpha+20120614-2ubuntu2UNKNOWN
Ubuntu16.04noarchxz-utils< 5.1.1alpha+20120614-2ubuntu2UNKNOWN
Ubuntu16.04noarchxz-utils-dbgsym< 5.1.1alpha+20120614-2ubuntu2UNKNOWN
Ubuntu16.04noarchxzdec< 5.1.1alpha+20120614-2ubuntu2UNKNOWN
Ubuntu16.04noarchxzdec-dbgsym< 5.1.1alpha+20120614-2ubuntu2UNKNOWN
Ubuntu14.04noarchxz-utils< 5.1.1alpha+20120614-2ubuntu2.14.04.1+esm1UNKNOWN
Ubuntu14.04noarchliblzma-dev< 5.1.1alpha+20120614-2ubuntu2UNKNOWN
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8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.2 High

AI Score

Confidence

High

6.5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.005 Low

EPSS

Percentile

76.3%