DjVuLibre is a GPL implementation of DjVu, a web-centric format for distributing documents and images. Prior to version 3.5.29, the MMRDecoder::scanruns method is affected by an OOB-write vulnerability, because it does not check that the xr pointer stays within the bounds of the allocated buffer. This can lead to writes beyond the allocated memory, resulting in a heap corruption condition. An out-of-bounds read with pr is also possible for the same reason. This issue has been patched in version 3.5.29.
https://www.openwall.com/lists/oss-security/2025/07/03/1
https://sourceforge.net/p/djvu/djvulibre-git/ci/33f645196593d70bd5e37f55b63886c31c82c3da
https://securitylab.github.com/advisories/GHSL-2025-055_DjVuLibre/
Published: 2025-07-03
Updated: 2025-07-18
Base Score: 6.1
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:C
Severity: Medium
Base Score: 6.6
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H
Severity: Medium
Base Score: 8.4
Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Severity: High
EPSS: 0.00014