CVE-2024-53984

Nanopb does not release memory on error return when using PB_DECODE_DELIMITED

Description

Nanopb is a small code-size Protocol Buffers implementation. When the compile time option PB_ENABLE_MALLOC is enabled, the message contains at least one field with FT_POINTER field type, custom stream callback is used with unknown stream length. and the pb_decode_ex() function is used with flag PB_DECODE_DELIMITED, then the pb_decode_ex() function does not automatically call pb_release(), like is done for other failure cases. This could lead to memory leak and potential denial-of-service. This vulnerability is fixed in 0.4.9.1.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.08%
Affected: nanopb nanopb
Published at:
Updated at:

References

Link Tags
https://github.com/nanopb/nanopb/security/advisories/GHSA-xwqq-qxmw-hj5r
https://github.com/nanopb/nanopb/commit/2b86c255aa52250438d5aba124d0e86db495b378

Frequently Asked Questions

What is the severity of CVE-2024-53984?
CVE-2024-53984 has been scored as a medium severity vulnerability.
How to fix CVE-2024-53984?
To fix CVE-2024-53984, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-53984 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-53984 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-53984?
CVE-2024-53984 affects nanopb nanopb.
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