SUSE update for libass



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-36430
CWE-ID CWE-122
Exploitation vector Network
Public exploit N/A
Vulnerable software
SUSE Manager Proxy
Operating systems & Components / Operating system

SUSE Manager Retail Branch Server
Operating systems & Components / Operating system

SUSE Manager Server
Operating systems & Components / Operating system

SUSE Linux Enterprise Server for SAP
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing
Operating systems & Components / Operating system

SUSE Enterprise Storage
Operating systems & Components / Operating system

SUSE CaaS Platform
Operating systems & Components / Operating system

SUSE Linux Enterprise Server
Operating systems & Components / Operating system

SUSE Linux Enterprise Module for Desktop Applications
Operating systems & Components / Operating system

libass9-debuginfo
Operating systems & Components / Operating system package or component

libass9
Operating systems & Components / Operating system package or component

libass-devel
Operating systems & Components / Operating system package or component

libass-debugsource
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Heap-based buffer overflow

EUVDB-ID: #VU56056

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-36430

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 vulnerability exists due to a boundary error in decode_chars (called from decode_font and process_text). A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package libass to the latest version.

Vulnerable software versions

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

SUSE Linux Enterprise Server for SAP: 15 - 15-SP1

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-SP1-LTSS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

SUSE Linux Enterprise Module for Desktop Applications: 15-SP2 - 15-SP3

libass9-debuginfo: before 0.14.0-3.9.1

libass9: before 0.14.0-3.9.1

libass-devel: before 0.14.0-3.9.1

libass-debugsource: before 0.14.0-3.9.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2021/suse-su-20212792-1/


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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