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ubuntucveUbuntu.comUB:CVE-2020-24996
HistorySep 03, 2020 - 12:00 a.m.

CVE-2020-24996

2020-09-0300:00:00
ubuntu.com
ubuntu.com
13

7.8 High

CVSS3

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

6.8 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

50.2%

There is an invalid memory access in the function TextString::~TextString()
located in Catalog.cc in Xpdf 4.0.2. It can be triggered by (for example)
sending a crafted pdf file to the pdftohtml 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 Doesn’t look like the same issue is in poppler, there is no Catalog.PageLabels
ebarretto xpdf in Debian uses poppler, which is not affected or fixed

7.8 High

CVSS3

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

6.8 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

50.2%

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