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Description

A security vulnerability has been detected in mrubyc up to 3.4. This impacts the function mrbc_raw_realloc of the file src/alloc.c. Such manipulation of the argument ptr leads to null pointer dereference. An attack has to be approached locally. The name of the patch is 009111904807b8567262036bf45297c3da8f1c87. It is advisable to implement a patch to correct this issue.

PUBLISHED Reserved 2025-11-19 | Published 2025-11-19 | Updated 2025-11-19 | Assigner VulDB




MEDIUM: 4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
1.7AV:L/AC:L/Au:S/C:N/I:N/A:P/E:ND/RL:OF/RC:C

Problem types

NULL Pointer Dereference

Denial of Service

Timeline

2025-11-19:Advisory disclosed
2025-11-19:VulDB entry created
2025-11-19:VulDB entry last update

Credits

micromilo (VulDB User) reporter

References

vuldb.com/?id.332925 (VDB-332925 | mrubyc alloc.c mrbc_raw_realloc null pointer dereference) vdb-entry technical-description

vuldb.com/?ctiid.332925 (VDB-332925 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.692130 (Submit #692130 | mrubyc 3.4 NULL Pointer Dereference) third-party-advisory

github.com/mrubyc/mrubyc/issues/244 issue-tracking

github.com/mrubyc/mrubyc/issues/244 issue-tracking

github.com/...ommit/009111904807b8567262036bf45297c3da8f1c87 patch

cve.org (CVE-2025-13397)

nvd.nist.gov (CVE-2025-13397)

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