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ubuntucveUbuntu.comUB:CVE-2021-25292
HistoryMar 03, 2021 - 12:00 a.m.

CVE-2021-25292

2021-03-0300:00:00
ubuntu.com
ubuntu.com
18
pillow
pdf parser
regular expression dos
crafting
catastrophic backtracking
unix

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

44.0%

An issue was discovered in Pillow before 8.1.1. The PDF parser allows a
regular expression DoS (ReDoS) attack via a crafted PDF file because of a
catastrophic backtracking regex.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchpillow< 5.1.0-1ubuntu0.5UNKNOWN
ubuntu20.04noarchpillow< 7.0.0-4ubuntu0.3UNKNOWN
ubuntu20.10noarchpillow< 7.2.0-1ubuntu0.2UNKNOWN
ubuntu20.04noarchpillow-python2< anyUNKNOWN

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

EPSS

0.001

Percentile

44.0%