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ubuntucveUbuntu.comUB:CVE-2022-30524
HistoryMay 09, 2022 - 12:00 a.m.

CVE-2022-30524

2022-05-0900:00:00
ubuntu.com
ubuntu.com
26
invalid memory access
textline class
xpdf
mishandles characters
large y coordinates
remote attacker
dos
segmentation fault

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

51.2%

There is an invalid memory access in the TextLine class in TextOutputDev.cc
in Xpdf 4.0.4 because the text extractor mishandles characters at large y
coordinates. It can be triggered by (for example) sending a crafted pdf
file to the pdftotext binary, which allows a remote attacker to cause a
Denial of Service (Segmentation fault) or possibly have unspecified other
impact.

Notes

Author Note
jdstrand xpdf in koffice is 2.0
mdeslaur no indication that this affects poppler
ebarretto xpdf in Debian uses poppler, which is not affected or fixed

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

51.2%