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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2022-31630
HistoryNov 14, 2022 - 7:15 a.m.

CVE-2022-31630

2022-11-1407:15:09
Debian Security Bug Tracker
security-tracker.debian.org
24
php
imageloadfont
gd extension
vulnerability
disclosure
confidential information
unix

CVSS3

7.1

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.5

Confidence

Low

EPSS

0.001

Percentile

34.3%

JSON

In PHP versions prior to 7.4.33, 8.0.25 and 8.1.12, when using imageloadfont() function in gd extension, it is possible to supply a specially crafted font file, such as if the loaded font is used with imagechar() function, the read outside allocated buffer will be used. This can lead to crashes or disclosure of confidential information.

OSVersionArchitecturePackageVersionFilename
Debian11allphp7.4< 7.4.33-1+deb11u1php7.4_7.4.33-1+deb11u1_all.deb

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CVSS3

7.1

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

7.5

Confidence

Low

EPSS

0.001

Percentile

34.3%

JSON
Related for DEBIANCVE:CVE-2022-31630
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