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Debian Security Bug TrackerDEBIANCVE:CVE-2022-28738

HistoryMay 09, 2022 - 6:15 p.m.

CVE-2022-28738

2022-05-0918:15:08

Debian Security Bug Tracker

security-tracker.debian.org

ruby

regexp

compiler

memory

write

vulnerability

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.005

Percentile

75.6%

JSON

A double free was found in the Regexp compiler in Ruby 3.x before 3.0.4 and 3.1.x before 3.1.2. If a victim attempts to create a Regexp from untrusted user input, an attacker may be able to write to unexpected memory locations.

OSVersionArchitecturePackageVersionFilename
Debian11allruby2.7< 2.7.4-1+deb11u1ruby2.7_2.7.4-1+deb11u1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	11	all	ruby2.7	< 2.7.4-1+deb11u1	ruby2.7_2.7.4-1+deb11u1_all.deb

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.005

Percentile

75.6%

JSON

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