Stack-based buffer over-read in libgxps - CVE-2018-10767
Published: May 16, 2018
Vulnerability identifier: #VU12748
CSH Severity: Low
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-10767
CWE-ID: CWE-126
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
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.
Affected software
libgxps
CentOS
Fedora
libgxps
CentOS
Fedora
libgxps
How to mitigate CVE-2018-10767
Cybersecurity is currently unaware of any solutions addressing the vulnerability.
libgxps - addressed in versions 0.3.0-4.fc27, 0.3.0-4.fc28, 0.3.1-1.fc29