#VU48732 Information disclosure in libvips - CVE-2020-20739

Vulnerability identifier: #VU48732

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-20739

CWE-ID: CWE-200

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libvips
Universal components / Libraries / Libraries used by multiple products

Vendor: libvips

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output by the application in "im_vips2dz" in "/libvips/libvips/deprecated/im_vips2dz.c". A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libvips: 8.1 - 8.8.1

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External links
https://github.com/libvips/libvips/commit/2ab5aa7bf515135c2b02d42e9a72e4c98e17031a
https://github.com/libvips/libvips/issues/1419
https://lists.debian.org/debian-lts-announce/2020/11/msg00049.html

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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.