| Vulnerability Name: | CVE-2021-3420 (CCN-197817) | ||||||||||||
| Assigned: | 2021-03-05 | ||||||||||||
| Published: | 2021-03-05 | ||||||||||||
| Updated: | 2021-03-24 | ||||||||||||
| Summary: | 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. | ||||||||||||
| CVSS v3 Severity: | 9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) 8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
8.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
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| CVSS v2 Severity: | 7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
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| Vulnerability Type: | CWE-120 CWE-190 | ||||||||||||
| Vulnerability Consequences: | Gain Access | ||||||||||||
| References: | Source: MITRE Type: CNA CVE-2021-3420 Source: CCN Type: Red Hat Bugzilla - Bug 1934088 (CVE-2021-3420) - CVE-2021-3420 arm-none-eabi-newlib: improper validation in memory allocation functions could lead to heap-based buffer overflow Source: MISC Type: Broken Link, Issue Tracking, Patch, Third Party Advisory https://bugzilla.redhat.com/show_bug.cgi?id=1934088 Source: XF Type: UNKNOWN newlib-cve20213420-bo(197817) Source: FEDORA Type: Mailing List, Third Party Advisory FEDORA-2021-332fb9c796 Source: FEDORA Type: Mailing List, Third Party Advisory FEDORA-2021-0fa2f42d3c Source: FEDORA Type: Mailing List, Third Party Advisory FEDORA-2021-267c08cc40 Source: CCN Type: newlib GIT Repository malloc/nano-malloc: correctly check for out-of-bounds allocation reqs | ||||||||||||
| Vulnerable Configuration: | Configuration 1: Configuration 2: Configuration CCN 1:  Denotes that component is vulnerable | ||||||||||||
| Oval Definitions | |||||||||||||
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