A djvulibre security update has been released for Debian GNU/Linux 8 Extended LTS to address an out-of-bounds write vulnerability.

DLA 2702-1: djvulibre security update

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Debian LTS Advisory DLA-2702-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Utkarsh Gupta
July 03, 2021   https://wiki.debian.org/LTS
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Package : djvulibre
Version : 3.5.27.1-7+deb9u2
CVE ID : CVE-2021-3630

An out-of-bounds write vulnerability was found in DjVuLibre in
DJVU::DjVuTXT::decode() in DjVuText.cpp via a crafted djvu file
which may lead to crash and segmentation fault.

For Debian 9 stretch, this problem has been fixed in version
3.5.27.1-7+deb9u2.

We recommend that you upgrade your djvulibre packages.

For the detailed security status of djvulibre please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/djvulibre

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS