Debian update for freetype



Published: 2017-04-29
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2016-10244
CVE-2017-8105
CVE-2017-8287
CWE-ID CWE-119
CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Debian Linux
Operating systems & Components / Operating system

Vendor Debian

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU11093

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-10244

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists in the The parse_charstrings function in type1/t1load.c due to a boundary error when it does not ensure that a font contains a glyph name. A remote attacker can send a specially crafted file, trigger buffer overflow and cause the service to crash.

Mitigation

Update the affected package to version: 2.5.2-3+deb8u2

Vulnerable software versions

Debian Linux: All versions

External links

http://git.savannah.gnu.org/cgit/freetype/freetype2.git/tree/ChangeLog?h=VER-2-7


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Heap-based buffer overflow

EUVDB-ID: #VU11094

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8105

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists in the t1_decoder_parse_charstrings function due to heap-based buffer overflow. A remote attacker can trigger out-of-bounds write and execute arbitrary code.

Mitigation

Update the affected package to version: 2.5.2-3+deb8u2

Vulnerable software versions

Debian Linux: All versions

External links

http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=f958c48ee431bef8d4d466b40c9cb2d4d...


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Heap-based buffer overflow

EUVDB-ID: #VU11095

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8287

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists in the t1_builder_close_contour function due to heap-based buffer overflow. A remote attacker can trigger out-of-bounds write and execute arbitrary code.

Mitigation

Update the affected package to version: 2.5.2-3+deb8u2

Vulnerable software versions

Debian Linux: All versions

External links

http://git.savannah.gnu.org/cgit/freetype/freetype2.git/commit/?id=3774fc08b502c3e685afca098b6e8a195...


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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