#VU17881 Stack-based buffer overflow in Glibc - CVE-2018-20796

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Main Vulnerability Database Vulnerabilities #VU17881

#VU17881 Stack-based buffer overflow in Glibc - CVE-2018-20796

Published: February 28, 2019 / Updated: April 7, 2020


Vulnerability identifier: #VU17881
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2018-20796
CWE-ID: CWE-121
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Glibc
Software vendor:
GNU

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to boundary error in check_dst_limits_calc_pos_1() function in posix/regexec.c. A local user can pass specially crafted arguments to the application, trigger stack overflow and perform denial of service attack.


Remediation

Install update from vendor's website.

External links