#VU12748 Stack-based buffer over-read in libgxps


Published: 2018-05-16

Vulnerability identifier: #VU12748

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:U/RC:U]

CVE-ID: CVE-2018-10767

CWE-ID: CWE-126

Exploitation vector: Network

Exploit availability: No

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

Vendor: Gnome Development Team

Description
The vulnerability allows a remote unauthenticated attacker to cause DoS condition on the target system.

The weakness exists in the gxps_images_guess_content_type function due to improper rejection of negative return values from a g_input_stream_read call. A remote attacker can submit a specially crafted request, trigger stack-based buffer overread when calling GLib in the gxps_images_guess_content_typefunction, as defined in the gxps-images.c source code file, and cause the service to crash.

Mitigation
Cybersecurity is currently unaware of any solutions addressing the vulnerability.

Vulnerable software versions

libgxps: 0.1 - 0.3


External links
http://bugzilla.redhat.com/show_bug.cgi?id=1575188


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. However, proof of concept for this vulnerability is available.


Latest bulletins with this vulnerability