CVE-2021-32492

A flaw was found in djvulibre-3.5.28 and earlier. An out of bounds read in function DJVU::DataPool::has_data() via crafted djvu file may lead to application crash and other consequences.

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):

A flaw was found in djvulibre-3.5.28 and earlier. A Stack overflow in function DJVU::DjVuDocument::get_djvu_file() via crafted djvu file may lead to application crash and other consequences.(CVE-2021-3500)

A flaw was found in djvulibre-3.5.28 and earlier. A heap buffer overflow in function DJVU::GBitmap::decode() via crafted djvu file may lead to application crash and other consequences.(CVE-2021-32493)

A flaw was found in djvulibre-3.5.28 and earlier. An out of bounds write in function DJVU::filter_bv() via crafted djvu file may lead to application crash and other consequences.(CVE-2021-32490)

A flaw was found in djvulibre-3.5.28 and earlier. An integer overflow in function render() in tools/ddjvu via crafted djvu file may lead to application crash and other consequences.(CVE-2021-32491)

A flaw was found in djvulibre-3.5.28 and earlier. An out of bounds read in function DJVU::DataPool::has_data() via crafted djvu file may lead to application crash and other consequences.(CVE-2021-32492)

A flaw was found in djvulibre-3.5.28 and earlier. An out of bounds read in function DJVU::DataPool::has_data() via crafted djvu file may lead to application crash and other consequences.

Stack overflow in function DJVU::DjVuDocument::get_djvu_file() via crafted djvu file. (CVE-2021-3500).

Out of bounds write in function DJVU::filter_bv() via crafted djvu file. (CVE-2021-32490).

Integer overflow in function render() in tools/ddjvu via crafted djvu file. (CVE-2021-32491)

Out of bounds read in function DJVU::DataPool::has_data() via crafted djvu file. (CVE-2021-32492).

Heap buffer overflow in function DJVU::GBitmap::decode() via crafted djvu file. (CVE-2021-32493).

This update for djvulibre fixes the following issues:

• CVE-2021-32490 [bsc#1185895]: Out of bounds write in function DJVU:filter_bv() via crafted djvu file
• 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

This update was imported from the SUSE:SLE-15-SP2:Update update project.

This update for djvulibre fixes the following issues:

• CVE-2021-32490 [bsc#1185895]: Out of bounds write in function DJVU:filter_bv() via crafted djvu file
• 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

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 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

This update for djvulibre fixes the following issues:

• CVE-2021-32490 [bsc#1185895]: Out of bounds write in function DJVU:filter_bv() via crafted djvu file
• 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

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

This update for djvulibre fixes the following issues:

Security issues fixed:

• CVE-2021-32490 [bsc#1185895], Out of bounds write in function DJVU:filter_bv() via crafted djvu file
• 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.

USN-4957-1 fixed several vulnerabilities in DjVuLibre. This update provides the corresponding update for Ubuntu 16.04 ESM.

Original advisory details:

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.