CVE-2020-6096

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.
Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

History

21 Nov 2022, 19:39

Type Values Removed Values Added
References (MLIST) https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html - (MLIST) https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html - Mailing List, Third Party Advisory
First Time Debian
Debian debian Linux
CPE cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

17 Oct 2022, 18:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.debian.org/debian-lts-announce/2022/10/msg00021.html -
CWE CWE-191
CWE-681
CWE-195

12 May 2022, 17:40

Type Values Removed Values Added
CWE CWE-681

04 Mar 2021, 20:46

Type Values Removed Values Added
CPE cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SPYXTDOOB4PQGTYAMZAZNJIB3FF6YQXI/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SPYXTDOOB4PQGTYAMZAZNJIB3FF6YQXI/ - Mailing List, Third Party Advisory
References (GENTOO) https://security.gentoo.org/glsa/202101-20 - (GENTOO) https://security.gentoo.org/glsa/202101-20 - Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/URXOIA2LDUKHQXK4BE55BQBRI6ZZG3Y6/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/URXOIA2LDUKHQXK4BE55BQBRI6ZZG3Y6/ - Mailing List, Third Party Advisory
References (MLIST) https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E - (MLIST) https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E - Mailing List, Third Party Advisory

25 Feb 2021, 17:15

Type Values Removed Values Added
References
  • (MLIST) https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772@%3Cdev.mina.apache.org%3E -

26 Jan 2021, 18:16

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202101-20 -

Information

Published : 2020-04-01 22:15

Updated : 2022-11-21 19:39


NVD link : CVE-2020-6096

Mitre link : CVE-2020-6096


JSON object : View

Products Affected

gnu

  • glibc

debian

  • debian_linux

fedoraproject

  • fedora
CWE
CWE-195

Signed to Unsigned Conversion Error