| ID |
CVE-2021-21401
|
| Sažetak |
Nanopb is a small code-size Protocol Buffers implementation in ansi C. In Nanopb before versions 0.3.9.8 and 0.4.5, decoding a specifically formed message can cause invalid `free()` or `realloc()` calls if the message type contains an `oneof` field, and the `oneof` directly contains both a pointer field and a non-pointer field. If the message data first contains the non-pointer field and then the pointer field, the data of the non-pointer field is incorrectly treated as if it was a pointer value. Such message data rarely occurs in normal messages, but it is a concern when untrusted data is parsed. This has been fixed in versions 0.3.9.8 and 0.4.5. See referenced GitHub Security Advisory for more information including workarounds. |
| Reference |
|
| CVSS |
| Base: | 5.5 |
| Impact: | 4.9 |
| Exploitability: | 8.0 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
LOW |
SINGLE |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| NONE |
PARTIAL |
PARTIAL |
|
| CVSS vektor |
AV:N/AC:L/Au:S/C:N/I:P/A:P |
| Zadnje važnije ažuriranje |
29-03-2021 - 14:50 |
| Objavljeno |
23-03-2021 - 18:15 |
