Multiple vulnerabilities in Radare2



| Updated: 2023-08-21
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2020-27793
CVE-2020-27794
CVE-2020-27795
CWE-ID CWE-193
CWE-415
CWE-908
Exploitation vector Network
Public exploit N/A
Vulnerable software
 radare2
Universal components / Libraries / Software for developers

Vendor Radare

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Off-by-one

EUVDB-ID: #VU79761

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-27793

CWE-ID: CWE-193 - Off-by-one Error

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to an off-by-one error in core_java.c. A remote attacker can trigger an off-by-one error and crash the application.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

radare2: 0.8.6 - 4.3.1

CPE2.3 External links

https://github.com/radareorg/radare2/commit/ced0223c7a1b3b5344af315715cd28fe7c0d9ebc
https://github.com/radareorg/radare2/issues/16304


Q & A

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.

2) Double Free

EUVDB-ID: #VU79763

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-27794

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in cmd_info.c:cmd_info(). A remote attacker can pass specially crafted data to the application, trigger a double free error 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

radare2: 0.8.6 - 4.3.1

CPE2.3 External links

https://github.com/radareorg/radare2/issues/16303
https://github.com/radareorg/radare2/commit/cb8b683758edddae2d2f62e8e63a738c39f92683


Q & A

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.

3) Use of uninitialized resource

EUVDB-ID: #VU79762

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-27795

CWE-ID: CWE-908 - Use of Uninitialized Resource

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to usage of uninitialized resources in libr/core/cmd_anal.c, when command "adf" has no or wrong argument. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

radare2: 0.8.6 - 4.3.1

CPE2.3 External links

https://github.com/radareorg/radare2/commit/4d3811681a80f92a53e795f6a64c4b0fc2c8dd22
https://github.com/radareorg/radare2/pull/16230
https://github.com/radareorg/radare2/issues/16215


Q & A

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.



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