openEuler 22.03 LTS update for lua
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2022-28805 CVE-2021-44647 |
| CWE-ID | CWE-122 CWE-843 |
| 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-devel 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 Operating systems & Components / Operating system package or component |
| Vendor | openEuler |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Heap-based buffer overflow
EUVDB-ID: #VU62053
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-28805
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
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 the singlevar function in lparser.c. A remote attacker can use a specially crafted luaK_exp2anyregup call, trigger heap-based buffer overflow 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 repository.
Vulnerable software versionsopenEuler: 22.03 LTS
lua-help: before 5.4.3-6
lua-devel: before 5.4.3-6
lua-debugsource: before 5.4.3-6
lua-debuginfo: before 5.4.3-6
lua: before 5.4.3-6
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1632
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) Type Confusion
EUVDB-ID: #VU75704
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-44647
CWE-ID:
CWE-843 - Type confusion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a type confusion error within the funcnamefromcode() function in ldebug.c. A remote attacker can pass specially crafted data to the application, trigger a type confusion error and perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 22.03 LTS
lua-help: before 5.4.3-6
lua-devel: before 5.4.3-6
lua-debugsource: before 5.4.3-6
lua-debuginfo: before 5.4.3-6
lua: before 5.4.3-6
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1632
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.
