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ubuntuUbuntuUSN-5378-2
HistoryApr 13, 2022 - 12:00 a.m.

XZ Utils vulnerability

2022-04-1300:00:00
ubuntu.com
229

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

9.3 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

0.006 Low

EPSS

Percentile

78.2%

Releases

  • Ubuntu 21.10
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM

Packages

  • xz-utils - XZ-format compression utilities

Details

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

OSVersionArchitecturePackageVersionFilename
Ubuntu21.10noarchxz-utils< 5.2.5-2ubuntu0.1UNKNOWN
Ubuntu21.10noarchliblzma-dev< 5.2.5-2ubuntu0.1UNKNOWN
Ubuntu21.10noarchliblzma-doc< 5.2.5-2ubuntu0.1UNKNOWN
Ubuntu21.10noarchliblzma5< 5.2.5-2ubuntu0.1UNKNOWN
Ubuntu21.10noarchliblzma5-dbgsym< 5.2.5-2ubuntu0.1UNKNOWN
Ubuntu21.10noarchxz-utils-dbgsym< 5.2.5-2ubuntu0.1UNKNOWN
Ubuntu21.10noarchxzdec< 5.2.5-2ubuntu0.1UNKNOWN
Ubuntu21.10noarchxzdec-dbgsym< 5.2.5-2ubuntu0.1UNKNOWN
Ubuntu20.04noarchxz-utils< 5.2.4-1ubuntu1.1UNKNOWN
Ubuntu20.04noarchliblzma-dev< 5.2.4-1ubuntu1.1UNKNOWN
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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

9.3 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

0.006 Low

EPSS

Percentile

78.2%