CVE-2024-53984

Nanopb does not release memory on error return when using PB_DECODE_DELIMITED

State
Published
Severity
4.3 Medium
Published
Dec 2, 2024
Updated
Dec 2, 2024
Reserved
Nov 25, 2024

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.14.3 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LGitHub_M

Weaknesses

  • CWE-401 Missing Release of Memory after Effective Lifetime
  • CWE-755 Improper Handling of Exceptional Conditions

Affected Products

ProductVersions
nanopbnanopb
  • >=0.4.0, < 0.4.9.1Affected

References

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