Access of Uninitialized Pointer in evince (Alpine package)

1) Access of Uninitialized Pointer

EUVDB-ID: #VU29244

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-11459

CWE-ID: CWE-824 - Access of Uninitialized Pointer

Exploit availability: No

Description

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

The vulnerability exists due tothe TIFFReadRGBAImageOriented() function called from tiff_document_render() and tiff_document_get_thumbnail() functions in the backend/tiff/tiff-document.c in GNOME Evince returns uninitialized memory instead of false, when failing to read an image. A remote attacker can gain access to sensitive information on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

evince (Alpine package): 3.10.0-r0 - 3.32.0-r0

CPE2.3

• cpe:2.3:o:alpine:evince_alpine_package:3.10.0-r0:*:*:*:*:alpine_linux:*:2.6
• cpe:2.3:o:alpine:evince_alpine_package:3.12.1-r0:*:*:*:*:alpine_linux:*:3.0
• cpe:2.3:o:alpine:evince_alpine_package:3.14.1-r0:*:*:*:*:alpine_linux:*:3.1

External links

https://git.alpinelinux.org/aports/commit/?id=eb152ccc8ef4c1e1e8d869a87b0d76c06b83114e
https://git.alpinelinux.org/aports/commit/?id=dccac760d7397f8dea6aa172e88d43f7933c019e

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.