This security advisory describes one high risk vulnerability.

1) Buffer overflow

Severity: High

CVSSv3:
8.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID:
CVE-2020-9859

CWE-ID:
CWE-119 – Improper Restriction of Operations within the Bounds of a Memory Buffer

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. A remote attacker can use a specially crafted application to trigger memory corruption and execute arbitrary code on the target system with kernel privileges.

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

Mitigation

Install updates from vendor’s website.

Vulnerable software versions

Apple iOS:
13.0, 13.1, 13.1.1, 13.1.2, 13.1.3, 13.2, 13.2.2, 13.2.3, 13.3, 13.3.1, 13.4, 13.4.1, 13.5

iPadOS:
13.1.1, 13.1.2, 13.1.3, 13.2, 13.2.2, 13.2.3, 13.3, 13.3.1, 13.4, 13.4.1, 13.5

CPE

External links

https://support.apple.com/en-us/HT211214

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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