CVE-2020-28928

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In musl libc through 1.2.1, wcsnrtombs mishandles particular combinations of destination buffer size and source character limit, as demonstrated by an invalid write access (buffer overflow).

En musl libc versiones hasta 1.2.1, wcsnrtombs maneja inapropiadamente combinaciones particulares de tamaño de búfer de destino y límite de caracteres de origen, como es demostrado por un acceso de escritura no válido (desbordamiento de búfer)

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-11-18 CVE Reserved
2020-11-24 CVE Published
2024-07-24 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (10)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2020/11/20/4	Mailing List
https://lists.apache.org/thread.html/r2134abfe847bea7795f0e53756d10a47e6643f35ab8169df8b8a9eb1%40%3Cnotifications.apisix.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r90b60cf49348e515257b4950900c1bd3ab95a960cf2469d919c7264e%40%3Cnotifications.apisix.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/ra63e8dc5137d952afc55dbbfa63be83304ecf842d1eab1ff3ebb29e2%40%3Cnotifications.apisix.apache.org%3E	Mailing List
https://lists.debian.org/debian-lts-announce/2020/11/msg00050.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com//security-alerts/cpujul2021.html	2023-11-07
https://www.oracle.com/security-alerts/cpuoct2021.html	2023-11-07

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKQ3RVSMVZNZNO4D65W2CZZ4DMYFZN2Q	2023-11-07
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UW27QVY7ERPTSGKS4KAWE5TU7EJWHKVQ	2023-11-07
https://musl.libc.org/releases.html	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Musl-libc Search vendor "Musl-libc"		Musl Search vendor "Musl-libc" for product "Musl"				<= 1.2.1 Search vendor "Musl-libc" for product "Musl" and version " <= 1.2.1"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				33 Search vendor "Fedoraproject" for product "Fedora" and version "33"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				34 Search vendor "Fedoraproject" for product "Fedora" and version "34"		-		Affected
Oracle Search vendor "Oracle"		Graalvm Search vendor "Oracle" for product "Graalvm"				20.3.2 Search vendor "Oracle" for product "Graalvm" and version "20.3.2"		enterprise		Affected
Oracle Search vendor "Oracle"		Graalvm Search vendor "Oracle" for product "Graalvm"				21.1.0 Search vendor "Oracle" for product "Graalvm" and version "21.1.0"		enterprise		Affected