7.1
CVE-2021-21401
- EPSS 0.2%
- Veröffentlicht 23.03.2021 18:15:13
- Zuletzt bearbeitet 21.11.2024 05:48:16
- Quelle security-advisories@github.com
- CVE-Watchlists
- Unerledigt
LoginNanopb 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Nanopb Project ≫ Nanopb Version < 0.3.9.8
Nanopb Project ≫ Nanopb Version >= 0.4.0 < 0.4.5
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.2% | 0.422 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 7.1 | 2.8 | 4.2 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
|
| nvd@nist.gov | 5.5 | 8 | 4.9 |
AV:N/AC:L/Au:S/C:N/I:P/A:P
|
| security-advisories@github.com | 7.1 | 2.8 | 4.2 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
|
CWE-763 Release of Invalid Pointer or Reference
The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly.