CVE-2022-4969: 
Python vulnerability analysis and mitigation

A critical vulnerability has been identified in bwoodsend rockhopper up to version 0.1.2. The vulnerability affects the countrows function in the rockhopper/src/raggedarray.c file of the Binary Parser component. The issue was discovered and disclosed in May 2024 (NVD).

The vulnerability is classified as a buffer overflow issue that occurs in the count_rows function when manipulating the raw argument. The vulnerability has received multiple CVSS scores: CVSS v4.0 score of 4.8 (MEDIUM) with vector CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N, and CVSS v3.1 score of 5.3 (MEDIUM) with vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L (VulDB).

When parsing binary data with ldtype=np.uint64, if a length is sufficiently close to 2^64, it can cause the parsing buffer pointer (starting from &buffer) to overflow. This allows reading of arbitrary memory owned by the current process whose address is < &buffer. If the overflow maps the pointer to a location not owned by the current process, a segfault will occur (GitHub Commit).

The vulnerability has been patched in version 0.2.0. Users are recommended to upgrade to this version. The fix includes implementing overflow detection which now raises a ValueError when parsing fails, preventing potential security exploits (GitHub Release).