Vulnerability identifier: #VU8604
Vulnerability risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-125
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
UnRar
Client/Desktop applications /
Software for archiving
Vendor: RARLAB
Description
The vulnerability allows a remote attacker to crash the affected application.
The vulnerability exists due to out-of-bounds read in libunrar.a in UnRAR before 5.5.7 in the Unpack::Unpack20 function. A remote attacker can create a specially crafted archive and crash the affected application.
Mitigation
Update to version 5.5.7.
Vulnerable software versions
UnRar: 5.5.6
External links
http://seclists.org/oss-sec/2017/q3/290
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.