CVE-2019-18804

DjVu is a set of compression technologies, a file format, and a software platform for the deliveryover the Web of digital documents, scanned documents, and high resolution images.DjVu documents download and display extremely quickly, and look exactly the same on all platforms with no compatibility problems due to fonts, colors, etc. DjVu can be seen as a superior alternative to PDF and PostScript for digital documents, to TIFF (and PDF) for scanned bitonal documents, to JPEG and JPEG2000 for photographs and pictures, and to GIF for large palettized images. DjVu is the only Web format that is practical for distributing high-resolution scanned documents in color.

Security Fix(es):

DjVuLibre 3.5.27 has a NULL pointer dereference in the function DJVU::filter_fv at IW44EncodeCodec.cpp.(CVE-2019-18804)

DjVuLibre 3.5.27 allows attackers to cause a denial-of-service attack (application crash via an out-of-bounds read) by crafting a corrupted JB2 image file that is mishandled in JB2Dict::JB2Codec::get_direct_context in libdjvu/JB2Image.h because of a missing zero-bytes check in libdjvu/GBitmap.h.(CVE-2019-15145)

In DjVuLibre 3.5.27, DjVmDir.cpp in the DJVU reader component allows attackers to cause a denial-of-service (application crash in GStringRep::strdup in libdjvu/GString.cpp caused by a heap-based buffer over-read) by crafting a DJVU file.(CVE-2019-15142)

In DjVuLibre 3.5.27, the bitmap reader component allows attackers to cause a denial-of-service error (resource exhaustion caused by a GBitmap::read_rle_raw infinite loop) by crafting a corrupted image file, related to libdjvu/DjVmDir.cpp and libdjvu/GBitmap.cpp.(CVE-2019-15143)

In DjVuLibre 3.5.27, the sorting functionality allows attackers to cause a denial-of-service (application crash due to an Uncontrolled Recursion) by crafting a PBM image file that is mishandled in libdjvu/GContainer.h.(CVE-2019-15144)

DjVuLibre 3.5.27 has a NULL pointer dereference in the function DJVU::filter_fv at IW44EncodeCodec.cpp.

The updated packages fix security vulnerabilities:

In DjVuLibre 3.5.27, DjVmDir.cpp in the DJVU reader component allows attackers to cause a denial-of-service (application crash in GStringRep::strdup in libdjvu/GString.cpp caused by a heap-based buffer over-read) by crafting a DJVU file. (CVE-2019-15142)

In DjVuLibre 3.5.27, the bitmap reader component allows attackers to cause a denial-of-service error (resource exhaustion caused by a GBitmap::read_rle_raw infinite loop) by crafting a corrupted image file, related to libdjvu/DjVmDir.cpp and libdjvu/GBitmap.cpp. (CVE-2019-15143)

In DjVuLibre 3.5.27, the sorting functionality (aka GArrayTemplate<TYPE>::sort) allows attackers to cause a denial-of-service (application crash due to an Uncontrolled Recursion) by crafting a PBM image file that is mishandled in libdjvu/GContainer.h. (CVE-2019-15144)

DjVuLibre 3.5.27 allows attackers to cause a denial-of-service attack (application crash via an out-of-bounds read) by crafting a corrupted JB2 image file that is mishandled in JB2Dict::JB2Codec::get_direct_context in libdjvu/JB2Image.h because of a missing zero-bytes check in libdjvu/GBitmap.h. (CVE-2019-15145)

DjVuLibre 3.5.27 has a NULL pointer dereference in the function DJVU::filter_fv at IW44EncodeCodec.cpp. (CVE-2019-18804)

This update for djvulibre fixes the following issues:

Security issue fixed:

• CVE-2019-18804: Fixed a null pointer dereference (bsc#1156188).

Other issue addressed:

• Fixed a crash when mmx was enabled (bsc#1154401) This update was imported from the SUSE:SLE-15:Update update project.

This update for djvulibre fixes the following issues:

Security issue fixed:

• CVE-2019-18804: Fixed a null pointer dereference (bsc#1156188).

Other issue addressed:

• Fixed a crash when mmx was enabled (bsc#1154401) This update was imported from the SUSE:SLE-15:Update update project.

These are all security issues fixed in the djvulibre-3.5.28-3.2 package on the GA media of openSUSE Tumbleweed.

This update for djvulibre fixes the following issues:

Security issue fixed:

• CVE-2019-18804: Fixed a null pointer dereference (bsc#1156188).

Other issue addressed:

• Fixed a crash when mmx was enabled (bsc#1154401)

This update for djvulibre fixes the following issues:

Security issue fixed:

• CVE-2019-18804: Fixed a null pointer dereference (bsc#1156188).

Other issue addressed:

• Fixed a crash when mmx was enabled (bsc#1154401)

This update for djvulibre fixes the following issues:

• CVE-2019-18804: Fixed a null pointer dereference (bsc#1156188).

This update for djvulibre fixes the following issues:

Security issues fixed:

• CVE-2021-32491 [bsc#1185900]: Integer overflow in function render() in tools/ddjvu via crafted djvu file
• CVE-2021-32492 [bsc#1185904]: Out of bounds read in function DJVU:DataPool:has_data() via crafted djvu file
• CVE-2021-32493 [bsc#1185905]: Heap buffer overflow in function DJVU:GBitmap:decode() via crafted djvu file

It was discovered that DjVuLibre incorrectly handled certain memory operations. If a user or automated system were tricked into processing a specially crafted DjVu file, a remote attacker could cause applications to hang or crash, resulting in a denial of service, or possibly execute arbitrary code.