Stack-based buffer overflow in uWSGI - CVE-2018-6758
Published: March 2, 2018 / Updated: March 22, 2018
Vulnerability identifier: #VU10843
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-6758
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The weakness exists in the uwsgi_expand_path function due to stack-based buffer overflow. A remote attacker can request a specially crafted long directory path, trigger memory corruption and cause the service to crash.
Affected software
uWSGI
Debian Linux
Fedora
uwsgi (Alpine package)
uwsgi
Debian Linux
Fedora
uwsgi (Alpine package)
uwsgi
How to mitigate CVE-2018-6758
Install update from vendor's website.
uwsgi (Alpine package) - addressed in versions 2.0.16-r0, 2.0.17-r0
uwsgi - addressed in versions 2.0.16-1.el7, 2.0.17.1-1.fc27
uwsgi - addressed in versions 2.0.16-1.el7, 2.0.17.1-1.fc27