Multiple vulnerabilities in Radare2
| 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 Subscribe |
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
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-27793
CWE-ID:
CWE-193 - Off-by-one Error
Exploit availability: No
DescriptionThe 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.
Install updates from vendor's website.
Vulnerable software versionsradare2: 0.8.6 - 4.3.1
External linkshttp://github.com/radareorg/radare2/commit/ced0223c7a1b3b5344af315715cd28fe7c0d9ebc
http://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
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-27794
CWE-ID:
CWE-415 - Double Free
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsradare2: 0.8.6 - 4.3.1
External linkshttp://github.com/radareorg/radare2/issues/16303
http://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
CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-27795
CWE-ID:
CWE-908 - Use of Uninitialized Resource
Exploit availability: No
DescriptionThe 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.
Install updates from vendor's website.
Vulnerable software versionsradare2: 0.8.6 - 4.3.1
External linkshttp://github.com/radareorg/radare2/commit/4d3811681a80f92a53e795f6a64c4b0fc2c8dd22
http://github.com/radareorg/radare2/pull/16230
http://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.
