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archlinuxArchLinuxASA-202010-10
HistoryOct 20, 2020 - 12:00 a.m.

[ASA-202010-10] freetype2: arbitrary code execution

2020-10-2000:00:00
security.archlinux.org
32

4.3 Medium

CVSS2

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

6.5 Medium

CVSS3

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

0.026 Low

EPSS

Percentile

90.3%

Arch Linux Security Advisory ASA-202010-10

Severity: High
Date : 2020-10-20
CVE-ID : CVE-2020-15999
Package : freetype2
Type : arbitrary code execution
Remote : Yes
Link : https://security.archlinux.org/AVG-1254

Summary

The package freetype2 before version 2.10.4-1 is vulnerable to
arbitrary code execution.

Resolution

Upgrade to 2.10.4-1.

pacman -Syu “freetype2>=2.10.4-1”

The problem has been fixed upstream in version 2.10.4.

Workaround

None.

Description

A heap buffer overflow has been found in freetype2 before 2.10.4.
Malformed TTF files with PNG sbit glyphs can cause a heap buffer
overflow in Load_SBit_Png as libpng uses the original 32-bit values,
which are saved in png_struct. If the original width and/or height are
greater than 65535, the allocated buffer won’t be able to fit the
bitmap.

Impact

A remote user can serve malformed TTF files that can cause arbitrary
code execution on the affected host.

References

http://git.savannah.nongnu.org/cgit/freetype/freetype2.git/commit/?id=a3bab162b2ae616074c8877a04556932998aeacd
https://savannah.nongnu.org/bugs/?59308
https://security.archlinux.org/CVE-2020-15999

OSVersionArchitecturePackageVersionFilename
ArchLinuxanyanyfreetype2< 2.10.4-1UNKNOWN

4.3 Medium

CVSS2

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

6.5 Medium

CVSS3

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

0.026 Low

EPSS

Percentile

90.3%