#VU21748 Memory leak in libvips - CVE-2019-6976

Vulnerability identifier: #VU21748

Vulnerability risk: Low

CVSSv4.0: 0.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-6976

CWE-ID: CWE-401

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 disclose sensitive information.

The vulnerability exists due memory leak within the iofuncs/memory.c file in libvips  library due to application does not zero out allocated memory when when processing corrupted input image data. A remote attacker can pass to the application a corrupted data and leak raw process memory contents through the output image.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

libvips: 8.7.0 - 8.7.3

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External links
https://blog.silentsignal.eu/2019/04/18/drop-by-drop-bleeding-through-libvips/
https://github.com/libvips/libvips/commit/00622428bda8d7521db8d74260b519fa41d69d0a
https://github.com/libvips/libvips/releases/tag/v8.7.4

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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.