Out-of-bounds Read in Libraw
CVE-2020-35531
In LibRaw, an out-of-bounds read vulnerability exists within the get_huffman_diff() function (libraw\src\x3f\x3f_utils_patched.cpp) when reading data from an image file.
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: 0.003 (20.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 20.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · 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
- github.com/LibRaw/LibRaw/issues/270 (Patch, Third Party Advisory, Issue Tracking)
- github.com/LibRaw/LibRaw/commit/d75af00681a74dcc8b929207eb895611a6eceb68 (Patch, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/09/msg00024.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-35531?
- CVE-2020-35531 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-2020-35531?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2020-35531 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.