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CVE-2020-28928

Good to know:

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Date: November 24, 2020

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).

Language: C

Severity Score

Related Resources (20)

https://nvd.nist.gov/vuln/detail/CVE-2020-28928
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LKQ3RVSMVZNZNO4D65W2CZZ4DMYFZN2Q/
https://lists.debian.org/debian-lts-announce/2020/11/msg00050.html
https://security.alpinelinux.org/vuln/CVE-2020-28928
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKQ3RVSMVZNZNO4D65W2CZZ4DMYFZN2Q/
https://musl.libc.org/releases.html
https://lists.apache.org/thread.html/r90b60cf49348e515257b4950900c1bd3ab95a960cf2469d919c7264e@%3Cnotifications.apisix.apache.org%3E
https://lists.apache.org/thread.html/r2134abfe847bea7795f0e53756d10a47e6643f35ab8169df8b8a9eb1%40%3Cnotifications.apisix.apache.org%3E
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UW27QVY7ERPTSGKS4KAWE5TU7EJWHKVQ/
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-28928
https://lists.apache.org/thread.html/r2134abfe847bea7795f0e53756d10a47e6643f35ab8169df8b8a9eb1@%3Cnotifications.apisix.apache.org%3E
https://security-tracker.debian.org/tracker/CVE-2020-28928
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UW27QVY7ERPTSGKS4KAWE5TU7EJWHKVQ/
https://lists.apache.org/thread.html/ra63e8dc5137d952afc55dbbfa63be83304ecf842d1eab1ff3ebb29e2@%3Cnotifications.apisix.apache.org%3E
https://www.oracle.com//security-alerts/cpujul2021.html
https://lists.apache.org/thread.html/r90b60cf49348e515257b4950900c1bd3ab95a960cf2469d919c7264e%40%3Cnotifications.apisix.apache.org%3E
http://www.openwall.com/lists/oss-security/2020/11/20/4
https://www.oracle.com/security-alerts/cpuoct2021.html
https://lists.apache.org/thread.html/ra63e8dc5137d952afc55dbbfa63be83304ecf842d1eab1ff3ebb29e2%40%3Cnotifications.apisix.apache.org%3E
https://www.mend.io/vulnerability-database/CVE-2020-28928

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Top Fix

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Upgrade Version

Upgrade to version Microsoft.NET.Runtime.Emscripten.2.0.23.Sdk.osx-x64 - no_fix;Microsoft.NET.Runtime.Emscripten.2.0.23.Sdk.win-x64 - no_fix;Microsoft.NET.Runtime.Emscripten.2.0.21.Sdk.win-x64 - no_fix;Microsoft.NET.Runtime.Emscripten.2.0.12.Sdk.win-x64 - no_fix;Microsoft.NET.Runtime.Emscripten.2.0.12.Sdk.linux-x64 - no_fix;Microsoft.NET.Runtime.Emscripten.2.0.21.Sdk.linux-x64 - no_fix;Microsoft.NET.Runtime.Emscripten.2.0.12.Sdk.osx-x64 - no_fix;Microsoft.NET.Runtime.Emscripten.2.0.23.Sdk.linux-x64 - no_fix;Microsoft.NET.Runtime.Emscripten.2.0.21.Sdk.osx-x64 - no_fix

Learn More

CVSS v3.1

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

CVSS v2

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

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