Improper input validation in Libraw

CVE-2020-15503

LibRaw before 0.20-RC1 lacks a thumbnail size range check. This affects decoders/unpack_thumb.cpp, postprocessing/mem_image.cpp, and utils/thumb_utils.cpp. For example, malloc(sizeof(libraw_processed_image_t)+T.tlength) occurs without validating T.tlength.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.037 (88.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-15503?
CVE-2020-15503 is a high-severity vulnerability in Libraw, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2020-07-02.
How severe is CVE-2020-15503?
High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2020-15503 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.