openEuler 22.03 LTS update for lua
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-44964 |
| CWE-ID | CWE-416 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
openEuler Operating systems & Components / Operating system lua-help Operating systems & Components / Operating system package or component lua-debugsource Operating systems & Components / Operating system package or component lua-debuginfo Operating systems & Components / Operating system package or component lua-devel Operating systems & Components / Operating system package or component lua Operating systems & Components / Operating system package or component |
| Vendor | openEuler |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Use-after-free
EUVDB-ID: #VU72632
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-44964
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error in garbage collector and finalizer of lgc.c. A remote attacker can pass specially crafted script file to the application, trigger a use-after-free error and perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 22.03 LTS
lua-help: before 5.4.3-8
lua-debugsource: before 5.4.3-8
lua-debuginfo: before 5.4.3-8
lua-devel: before 5.4.3-8
lua: before 5.4.3-8
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1860
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.
