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CVE-2020-6096 An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000
Description
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.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| GNU glibc | 2.30.9000 | Pas de correctif indiqué |
| SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.0 → < 3.1.5 | 3.1.5 |
| SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 | 3.1.0 → < 3.1.5 | 3.1.5 |
| SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 | 3.1.0 → < 3.1.5 | 3.1.5 |
Références
- FEDORA-2020-d860479b2a lists.fedoraproject.org
- FEDORA-2020-4e92a61688 lists.fedoraproject.org
- GLSA-202101-20 security.gentoo.org
- [mina-dev] 20210225 [jira] [Created] (FTPSERVER-500) Security vulnerability in common/lib/log4j-1.2.17.jar lists.apache.org
- sourceware.org sourceware.org
- www.talosintelligence.com www.talosintelligence.com
- [debian-lts-announce] 20221017 [SECURITY] [DLA 3152-1] glibc security update lists.debian.org
Chronologie
- Publiée
- Dernière modification