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CVE-2022-28805

Date: April 7, 2022

singlevar in lparser.c in Lua from (including) 5.4.0 up to (excluding) 5.4.4 lacks a certain luaK_exp2anyregup call, leading to a heap-based buffer over-read that might affect a system that compiles untrusted Lua code.

Language: C

Severity Score

9.1

Related Resources (15)

Url: https://security-tracker.debian.org/tracker/CVE-2022-28805

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6DNONIVVHPA/

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGIA3HWWC36R/

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2022-28805

Url: https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHYZOEFDVLVAD6EEP4CDW6DNONIVVHPA/

Url: https://lua-users.org/lists/lua-l/2022-02/msg00001.html

Url: https://github.com/lua/lua/commit/1f3c6f4534c6411313361697d98d1145a1f030fa

Url: https://lua-users.org/lists/lua-l/2022-02/msg00070.html

Url: https://security.alpinelinux.org/vuln/CVE-2022-28805

Url: https://nvd.nist.gov/vuln/detail/CVE-2022-28805

Url: https://lua-users.org/lists/lua-l/2022-04/msg00009.html

Url: https://access.redhat.com/security/cve/CVE-2022-28805

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJNJ66IFDUKWJJZXHGOLRGIA3HWWC36R/

Url: https://security.gentoo.org/glsa/202305-23

Url: https://www.mend.io/vulnerability-database/CVE-2022-28805

Severity Score

9.1

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

CVSS v3.1

Base Score:	9.1
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	NONE
Availability (A):	HIGH

CVSS v2

Base Score:	6.4
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	PARTIAL
Additional information:

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