#VU39175 Use-after-free in radare2 - CVE-2017-7946

Vulnerability identifier: #VU39175

Vulnerability risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-7946

CWE-ID: CWE-416

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 compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing a crafted Mach0 file. A remote attackers can cause a denial of service (use-after-free and application crash).

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

radare2: 1.3.0

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External links
https://github.com/radare/radare2/commit/d1e8ac62c6d978d4662f69116e30230d43033c92
https://github.com/radare/radare2/issues/7301

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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.