| Severity |
|
| Remote |
|
| Type |
| - |
Unknown |
| + |
Arbitrary code execution |
|
| Description |
| + |
_gcry_md_block_write in cipher/hash-common.c in libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. Just decrypting some data can overflow a heap buffer with attacker controlled data, no verification or signature is validated before the vulnerability occurs. The issue is fixed in version 1.9.1. |
|
| References |
| + |
https://lists.gnupg.org/pipermail/gnupg-announce/2021q1/000456.html |
| + |
https://dev.gnupg.org/T5275 |
| + |
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commitdiff;h=512c0c75276949f13b6373b5c04f7065af750b08 |
|
| Notes |
|