CVE-2021-3420 Common Vulnerabilities and Exposures

Upstream information

CVE-2021-3420 at MITRE

Description

A flaw was found in newlib in versions prior to 4.0.0. Improper overflow validation in the memory allocation functions mEMALIGn, pvALLOc, nano_memalign, nano_valloc, nano_pvalloc could case an integer overflow, leading to an allocation of a small buffer and then to a heap-based buffer overflow.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having critical severity.

CVSS v2 Scores
	National Vulnerability Database
Base Score	7.5
Vector	AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector	Network
Access Complexity	Low
Authentication	None
Confidentiality Impact	Partial
Integrity Impact	Partial
Availability Impact	Partial

CVSS v3 Scores
	National Vulnerability Database
Base Score	9.8
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality Impact	High
Integrity Impact	High
Availability Impact	High
CVSSv3 Version	3.1

SUSE Bugzilla entry: 1183172 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s)	Fixed package version(s)	References
openSUSE Tumbleweed	`newlib >= 4.1.0-2.2`	Patchnames: openSUSE-Tumbleweed-2024-11086

SUSE Timeline for this CVE

CVE page created: Mon Mar 8 14:25:35 2021
CVE page last modified: Tue Sep 3 19:18:46 2024