#VU86053 Integer overflow in libebml - CVE-2023-52339

Vulnerability identifier: #VU86053

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2023-52339

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libebml
Other software / Other software solutions

Vendor: www.matroska.org

Description

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

The vulnerability exists due to integer overflow in MemIOCallback.cpp. A remote attacker can pass specially crafted data to the application, trigger an integer overflow and execute arbitrary code on the target system.

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

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libebml: 1.4.0 - 1.4.4

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External links
https://github.com/Matroska-Org/libebml/issues/147
https://github.com/Matroska-Org/libebml/pull/148
https://github.com/Matroska-Org/libebml/blob/v1.x/NEWS.md
https://github.com/Matroska-Org/libebml/compare/release-1.4.4...release-1.4.5
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BJUXVOIRWPP7OFYUKQZDNJTSLWCPIZBH/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XNANFT4P6KL4WDQ3TV6QQ44NSC7WKLAB/

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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.