CVE-2020-15503

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-07-02 · updated 2026-06-17
Weakness: CWE-20

Description

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.

Affected products

Debian Linux: 10.0
Fedoraproject Fedora: 31, 32
LibRaw: through 0.19.5; 0.20-beta1, 0.20-beta2, 0.20-beta3

References

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00075.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00001.html
https://github.com/LibRaw/LibRaw/commit/20ad21c0d87ca80217aee47533d91e633ce1864d
https://github.com/LibRaw/LibRaw/compare/0.20-Beta3...0.20-RC1
https://lists.debian.org/debian-lts-announce/2022/11/msg00042.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7HM2DS6HA4YZREI3BYGS75M6D76WMW62/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CSXAJKZ4VNDYVQULJNY4XDPWHIJDTB4P/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DNGDWTO45TU4KGND75EUUEGUMNSOYC7H/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QCVKD7PTO7UQAVUTBHJAKBKYLPQQGAMZ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y34ALB34P3NGQXLF7BG7R6DGRX6XL2JN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZETDVPZQWZWVGIG6JTIEKP5KPVMUE7Y/
https://www.libraw.org/news/libraw-0-20-rc1

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