Stack-based buffer overflow in radare2 - CVE-2017-9949
Published: June 26, 2017 / Updated: January 25, 2021
Vulnerability identifier: #VU38810
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2017-9949
CWE-ID: CWE-121
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Radare
Affected software:
radare2
radare2
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 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.
How to mitigate CVE-2017-9949
Install update from vendor's website.