Sicherheit: Pufferüberlauf in djvulibre
Aktuelle Meldungen Distributionen
Name: Pufferüberlauf in djvulibre
ID: FEDORA-2021-d781fa9f44
Distribution: Fedora
Plattformen: Fedora 34
Datum: Fr, 7. Mai 2021, 08:30
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3500
Applikationen: DjVuLibre


Fedora Update Notification
2021-05-07 01:01:44.952333

Name : djvulibre
Product : Fedora 34
Version : 3.5.27
Release : 28.fc34
URL : http://djvu.sourceforge.net/
Summary : DjVu viewers, encoders, and utilities
Description :
DjVu is a web-centric format and software platform for distributing documents
and images. DjVu can advantageously replace PDF, PS, TIFF, JPEG, and GIF for
distributing scanned documents, digital documents, or high-resolution pictures.
DjVu content downloads faster, displays and renders faster, looks nicer on a
screen, and consume less client resources than competing formats. DjVu images
display instantly and can be smoothly zoomed and panned with no lengthy

DjVuLibre is a free (GPL'ed) implementation of DjVu, including viewers,
decoders, simple encoders, and utilities. The browser plugin is in its own
separate sub-package.

Update Information:

This update fixes several issues in djvulibre. These are mostly related to
opening of corrupted files.

* Mon May 3 2021 Marek Kasik <mkasik@redhat.com> - 3.5.27-28
- Avoid unsigned short overflow in GBitmap when allocating row buffer
- Resolves: #1943424
* Mon May 3 2021 Marek Kasik <mkasik@redhat.com> - 3.5.27-27
- Avoid stack overflow in DjVuPort by remembering which file we are opening
- Resolves: #1943411, #1943685
* Mon May 3 2021 Marek Kasik <mkasik@redhat.com> - 3.5.27-26
- Check input pool for NULL
- Resolves: #1943410
* Mon May 3 2021 Marek Kasik <mkasik@redhat.com> - 3.5.27-25
- Avoid integer overflow when allocating bitmap
- Resolves: #1943409
* Mon May 3 2021 Marek Kasik <mkasik@redhat.com> - 3.5.27-24
- Check image size for 0
- Resolves: #1943408

[ 1 ] Bug #1943685 - CVE-2021-3500 djvulibre: Stack overflow in function
DJVU::DjVuDocument::get_djvu_file() via crafted djvu file

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-d781fa9f44' at the command
line. For more information, refer to the dnf documentation available at

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