NULL pointer dereference in mruby
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-0240 |
| CWE-ID | CWE-476 |
| Exploitation vector | Local |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
mruby Universal components / Libraries / Scripting languages |
| Vendor | mruby |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) NULL pointer dereference
EUVDB-ID: #VU59910
Risk: Low
CVSSv3.1: 5.6 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2022-0240
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the class.c script. A local attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsmruby: 1.0.0 - 3.0.0
External linkshttp://huntr.dev/bounties/5857eced-aad9-417d-864e-0bdf17226cbb
http://github.com/mruby/mruby/commit/31fa3304049fc406a201a72293cce140f0557dca
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. However, proof of concept for this vulnerability is available.
