Show vulnerabilities with patch / with exploit

Multiple vulnerabilities in YARA



Published: 2020-06-29
Severity High
Patch available YES
Number of vulnerabilities 2
CVE ID N/A
CWE ID CWE-416
CWE-190
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
YARA
Server applications / Server solutions for antivurus protection

Vendor VirusTotal

Security Advisory

1) Use-after-free

Severity: High

CVSSv3: 8.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: N/A

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in PE module. A remote attacker can use a specially crafted PE file and execute arbitrary code on the target system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

YARA: 4.0.0, 4.0.1

CPE External links

https://github.com/VirusTotal/yara/releases/tag/v4.0.2
https://github.com/VirusTotal/yara/pull/1287

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Integer overflow

Severity: High

CVSSv3: 8.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: N/A

CWE-ID: CWE-190 - Integer Overflow or Wraparound

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow causing missed matches on files larger than 2GB. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

YARA: 4.0.0, 4.0.1

CPE External links

https://github.com/VirusTotal/yara/releases/tag/v4.0.2
https://github.com/VirusTotal/yara/issues/1295

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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