Stack-based buffer overflow in libslax - CVE-2021-39531
Published: April 12, 2024
Vulnerability identifier: #VU88500
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-39531
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Juniper Networks, Inc.
Affected software:
libslax
libslax
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the slaxLexer() function in slaxlexer.c. A remote unauthenticated attacker can pass specially crafted input to the application, trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2021-39531
Install updates from vendor's website.