Description
CFITSIO through 4.7.0 contains an out-of-bounds write vulnerability in ffgcls2() in getcols.c that trusts attacker-controlled heap descriptor lengths for variable-length string columns. Attackers can supply a crafted FITS file that overflows a fixed 28,800-byte stack buffer and the caller's string array, enabling arbitrary code execution.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
HEASARC cfitsio
Default version status: unaffected
0 to ≤ 4.7.0affected
References
- https://gist.github.com/yure1432/98f15c7e8f48dc90ae65646f926aa176 ↗
- https://github.com/HEASARC/cfitsio/pull/184 ↗
- https://github.com/HEASARC/cfitsio/commit/579792e0f85bff0c6733ad5ebdf54c3b5c188686 ↗
- https://github.com/HEASARC/cfitsio ↗
- https://www.vulncheck.com/advisories/cfitsio-through-4.7.0-out-of-bounds-write-via-ffgcls2-in-getcols-c ↗