DEBIAN-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.
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:14 | glibc | 0, 0, 0 |
| Debian:11 | glibc | 0, 0, 0 |
| Debian:13 | glibc | 0, 0, 0 |
| Debian:12 | glibc | 0, 0, 0 |
Timeline
- Apr 1, 2020 CVE Published
- Apr 28, 2026 CVE Updated