Risk | High |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2022-28805 CVE-2022-33099 |
CWE-ID | CWE-122 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Lua Universal components / Libraries / Scripting languages |
Vendor | Lua |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
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 update from vendor's website.
Vulnerable software versionsLua: 5.4.0 - 5.4.4
External linkshttp://lua-users.org/lists/lua-l/2022-02/msg00001.html
http://lua-users.org/lists/lua-l/2022-02/msg00070.html
http://lua-users.org/lists/lua-l/2022-04/msg00009.html
http://github.com/lua/lua/commit/1f3c6f4534c6411313361697d98d1145a1f030fa
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.
EUVDB-ID: #VU68952
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-2022-33099
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The
vulnerability exists due to a boundary error in the luaG_runerror component. A remote attacker can send specially crafted data to the application, trigger a heap-based buffer overflow and perform a denial of service (DoS) attack.
Install update from vendor's website.
Vulnerable software versionsLua: 5.4.0 - 5.4.4
External linkshttp://lua-users.org/lists/lua-l/2022-05/msg00073.html
http://lua-users.org/lists/lua-l/2022-05/msg00042.html
http://www.lua.org/bugs.html#Lua-stack%20overflow%20when%20C%20stack%20overflows%20while%20handling%20an%20error:~:text=Lua%2Dstack%20overflow%20when%20C%20stack%20overflows%20while%20handling%20an%20error
http://lua-users.org/lists/lua-l/2022-05/msg00035.html
http://github.com/lua/lua/commit/42d40581dd919fb134c07027ca1ce0844c670daf
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGIA3HWWC36R/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6DNONIVVHPA/
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.