Out-of-bounds write in py3-pillow (Alpine package)



Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-35654
CWE-ID CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
 py3-pillow (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Out-of-bounds write

EUVDB-ID: #VU49384

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-2020-35654

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing TIFF files. A remote attacker can create a specially crafted file, trick the victim into opening it using the affected software, trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

py3-pillow (Alpine package): 7.1.2-r0 - 7.2.0-r1

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=bd4e89c6a26bf7c247c3335b8a7aef053815dfc7


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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