5.6

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2024-56826

CVE-2024-56826: A flaw was found in the OpenJPEG project. A heap buffer overflow condition may be triggered when...

A flaw was found in the OpenJPEG project. A heap buffer overflow condition may be triggered when certain options are specified while using the opj_decompress utility. This can lead to an application crash or other undefined behavior.

(GitHub Advisory)

Miggo Vulnerability Database

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CVE-2024-56826

CVE-2024-56826:

5.6

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

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Root Cause Analysis

The analysis is based on the provided commit e492644fbded4c820ca55b5e50e598d346e850e8. The commit modifies the function opj_j2k_add_tlmarker in src/lib/openjp2/j2k.c. The patch introduces a new condition l_current_tile_part < cstr_index->tile_index[tileno].nb_tps before accessing an array element cstr_index->tile_index[tileno].tp_index[l_current_tile_part]. This indicates that without this check, l_current_tile_part could be out of bounds, leading to a heap buffer overflow when writing to tp_index[l_current_tile_part].start_pos. Therefore, opj_j2k_add_tlmarker is identified as the vulnerable function where the overflow could occur. The vulnerability description also mentions the opj_decompress utility, which is likely a higher-level function that calls opj_j2k_add_tlmarker, but the direct code change and the point of overflow is within opj_j2k_add_tlmarker.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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