Out-of-bounds Read in Libraw

CVE-2020-35532

In LibRaw, an out-of-bounds read vulnerability exists within the "simple_decode_row()" function (libraw\src\x3f\x3f_utils_patched.cpp) which can be triggered via an image with a large row_stride field.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (30.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-35532: held from 0.004 to 0.004.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

  • Libraw — versions 0.20.0, 0.20.1, 0.20.2
  • Debian Linux — versions 10.0
  • Libraw — versions LibRaw 0.21-Beta1, LibRaw 0.20.2, LibRaw 0.20.1, LibRaw 0.20.0, LibRaw 0.20-RC2

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-35532?
CVE-2020-35532 is a medium-severity vulnerability in Libraw, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2022-09-01.
How severe is CVE-2020-35532?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2020-35532 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.