Stack-based buffer overflow in radare2 - CVE-2017-9949
Published: June 26, 2017 / Updated: January 25, 2021
Vulnerability identifier: #VU38810
CSH Severity: Medium
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-9949
CWE-ID: CWE-121
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the grub_memmove function in shlr/grub/kern/misc.c when processing a crafted binary file, possibly related to a buffer underflow in fs/ext2.c in GNU GRUB 2.02. A remote unauthenticated attacker can trigger 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.
Affected software
radare2
How to mitigate CVE-2017-9949
Install update from vendor's website.