Out-of-memory condition in Nanopb is potentially exploitable (nanopb Nanopb)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.73 % · percentile 78 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Modified
Description
There is a potentially exploitable out of memory condition In Nanopb before 0.4.1, 0.3.9.5, and 0.2.9.4. When nanopb is compiled with PB_ENABLE_MALLOC, the message to be decoded contains a repeated string, bytes or message field and realloc() runs out of memory when expanding the array nanopb can end up calling `free()` on a pointer value that comes from uninitialized memory. Depending on platform this can result in a crash or further memory corruption, which may be exploitable in some cases. This problem is fixed in nanopb-0.4.1, nanopb-0.3.9.5, nanopb-0.2.9.4.
Weaknesses (CWE)
- CWE-125 — Out-of-bounds Read
References
- https://github.com/nanopb/nanopb/security/advisories/GHSA-gcx3-7m76-287p
- https://github.com/nanopb/nanopb/commit/45582f1f97f49e2abfdba1463d1e1027682d9856
- https://github.com/nanopb/nanopb/commit/7b396821ddd06df8e39143f16e1dc0a4645b89a3
- https://github.com/nanopb/nanopb/commit/aa9d0d1ca78d6adec3adfeecf3a706c7f9df81f2
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L | GitHub_M |
| CVSS 3.1 | MEDIUM 6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | CRITICAL 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-26456
- GCVE · GCVE-0-2020-5235
CERT-FR advisories
- CERTFR-2021-AVI-240 — Multiples vulnérabilités dans Google Android · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:nanopb_project:nanopb:*:*:*:*:*:*:*:*< 0.2.9.4cpe:2.3:a:nanopb_project:nanopb:*:*:*:*:*:*:*:*≥ 0.3.0 < 0.3.9.5cpe:2.3:a:nanopb_project:nanopb:*:*:*:*:*:*:*:*≥ 0.4.0 < 0.4.1
Affected products
| Product | Versions |
|---|---|
| nanopb · Nanopb | affected < 0.2.9.4 ; affected >= 0.3.0, < 0.3.9.5 ; affected >= 0.4.0, < 0.4.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |