#VU39297 Stack-based buffer overflow in radare2 - CVE-2017-6448

Vulnerability identifier: #VU39297

Vulnerability risk: Medium

CVSSv4.0: 5.7 [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-2017-6448

CWE-ID: CWE-121

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
radare2
Universal components / Libraries / Software for developers

Vendor: Radare

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 dalvik_disassemble function in libr/asm/p/asm_dalvik.c when processing a crafted DEX file. 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.

Mitigation
Install update from vendor's website.

Vulnerable software versions

radare2: 1.2.1

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External links
https://www.securityfocus.com/bid/97313
https://github.com/radare/radare2/commit/f41e941341e44aa86edd4483c4487ec09a074257
https://github.com/radare/radare2/issues/6885

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.