| Vulnerability Name: | CVE-2020-6096 (CCN-179107) | ||||||||||||
| Assigned: | 2020-04-01 | ||||||||||||
| Published: | 2020-04-01 | ||||||||||||
| Updated: | 2022-11-21 | ||||||||||||
| Summary: | An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000. Calling memcpy() (on ARMv7 targets that utilize the GNU glibc implementation) with a negative value for the 'num' parameter results in a signed comparison vulnerability. If an attacker underflows the 'num' parameter to memcpy(), this vulnerability could lead to undefined behavior such as writing to out-of-bounds memory and potentially remote code execution. Furthermore, this memcpy() implementation allows for program execution to continue in scenarios where a segmentation fault or crash should have occurred. The dangers occur in that subsequent execution and iterations of this code will be executed with this corrupted data. | ||||||||||||
| CVSS v3 Severity: | 8.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H) 7.1 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R)
8.6 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:U/RC:R)
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| CVSS v2 Severity: | 6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
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| Vulnerability Type: | CWE-195 | ||||||||||||
| Vulnerability Consequences: | Gain Access | ||||||||||||
| References: | Source: MITRE Type: CNA CVE-2020-6096 Source: XF Type: UNKNOWN gnu-glibc-cve20206096-code-exec(179107) Source: MLIST Type: Mailing List, Third Party Advisory [mina-dev] 20210225 [jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jar Source: MLIST Type: Mailing List, Third Party Advisory [debian-lts-announce] 20221017 [SECURITY] [DLA 3152-1] glibc security update Source: FEDORA Type: Mailing List, Third Party Advisory FEDORA-2020-4e92a61688 Source: FEDORA Type: Mailing List, Third Party Advisory FEDORA-2020-d860479b2a Source: GENTOO Type: Third Party Advisory GLSA-202101-20 Source: CCN Type: Sourceware Bugzilla Bug 25620 (CVE-2020-6096) - Signed comparison vulnerability in the ARMv7 memcpy() (CVE-2020-6096) Source: MISC Type: Issue Tracking, Third Party Advisory https://sourceware.org/bugzilla/show_bug.cgi?id=25620 Source: CCN Type: GNU Web site GNU C Library (glibc) Source: CCN Type: IBM Security Bulletin 6982841 (Netcool Operations Insight) Netcool Operations Insight v1.6.8 addresses multiple security vulnerabilities. Source: MISC Type: Third Party Advisory https://www.talosintelligence.com/vulnerability_reports/TALOS-2020-1019 | ||||||||||||
| Vulnerable Configuration: | Configuration 1: Configuration 2: Configuration 3:  Denotes that component is vulnerable | ||||||||||||
| Oval Definitions | |||||||||||||
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