Lua up to 5.4.4 luaG_runerror heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.04

A vulnerability classified as critical was found in Lua up to 5.4.4. This vulnerability affects the function luaG_runerror. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue in the component luaG_runerror of Lua v5.4.4 and below leads to a heap-buffer overflow when a recursive error occurs.

The weakness was released 07/01/2022 as 42d40581dd919fb134c07027ca1ce0844c670daf. The advisory is available at github.com. This vulnerability was named CVE-2022-33099 since 06/13/2022. Technical details are known, but there is no available exploit.

Applying the patch 42d40581dd919fb134c07027ca1ce0844c670daf is able to eliminate this problem. The bugfix is ready for download at github.com.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

NVD Base Score: 🔒

Exploitinginfo

Class: Memory corruption
CWE: CWE-122 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 42d40581dd919fb134c07027ca1ce0844c670daf

Timelineinfo

06/13/2022 CVE reserved
07/01/2022 +18 days Advisory disclosed
07/01/2022 +0 days VulDB entry created
07/18/2022 +17 days VulDB last update

Sourcesinfo

Advisory: 42d40581dd919fb134c07027ca1ce0844c670daf
Status: Not defined

CVE: CVE-2022-33099 (🔒)

Entryinfo

Created: 07/01/2022 05:08 PM
Updated: 07/18/2022 07:30 AM
Changes: (18) vulnerability_cvss2_nvd_basescore vulnerability_cvss2_nvd_av vulnerability_cvss2_nvd_ac vulnerability_cvss2_nvd_au vulnerability_cvss2_nvd_ci vulnerability_cvss2_nvd_ii vulnerability_cvss2_nvd_ai vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore vulnerability_cvss3_nvd_basescore vulnerability_cvss3_nvd_av vulnerability_cvss3_nvd_ac vulnerability_cvss3_nvd_pr vulnerability_cvss3_nvd_ui vulnerability_cvss3_nvd_s vulnerability_cvss3_nvd_c vulnerability_cvss3_nvd_i vulnerability_cvss3_nvd_a
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