DEBIAN-CVE-2020-6096
- Source
- https://security-tracker.debian.org/tracker/DEBIAN-CVE-2020-6096
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2020-6096.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2020-6096
- Upstream
- Published
- 2020-04-01T22:15:18Z
- Modified
- 2025-09-19T06:18:06Z
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Debian:11 / glibc
Package
- Name
- glibc
- Purl
- pkg:deb/debian/glibc?arch=source
Debian:12 / glibc
Package
- Name
- glibc
- Purl
- pkg:deb/debian/glibc?arch=source
Debian:13 / glibc
Package
- Name
- glibc
- Purl
- pkg:deb/debian/glibc?arch=source
Debian:14 / glibc
Package
- Name
- glibc
- Purl
- pkg:deb/debian/glibc?arch=source