CVE-2021-40985

A stack-based buffer under-read in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp.

Buffer overflow vulnerability in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp. (CVE-2021-40985)

These are all security issues fixed in the htmldoc-1.9.12-2.1 package on the GA media of openSUSE Tumbleweed.

This update for htmldoc fixes the following issues:

• CVE-2021-40985: Fixed a buffer overflow that may have let to a DoS via a crafted BMP image (bsc#1192357).

It was discovered that HTMLDOC incorrectly handled certain inputs, which could lead to an integer overflow. An attacker could potentially use this issue to cause a denial of service or execute arbitrary code. (CVE-2021-20308)

It was discovered that HTMLDOC incorrectly handled memory in pspdf_export, which could lead to a double-free. An attacker could potentially use this issue to cause a denial of service or execute arbitrary code. (CVE-2021-23158)

It was discovered that HTMLDOC incorrectly handled memory when loading a JPEG image, which could lead to a NULL pointer dereference. An attacker could potentially use this issue to cause a denial of service. (CVE-2021-23191, CVE-2021-26948)

It was discovered that HTMLDOC incorrectly handled certain inputs, which could lead to a stack buffer overflow. An attacker could potentially use this issue to cause a denial of service or execute arbitrary code. (CVE-2021-23206, CVE-2021-40985, CVE-2021-43579)

It was discovered that HTMLDOC incorrectly handled memory in pdpdf_prepare_page and render_table_row, which could lead to a heap buffer overflow. An attacker could potentially use this issue to cause a denial of service or execute arbitrary code. (CVE-2021-26252, CVE-2021-26259)

It was discovered that HTMLDOC incorrectly handled memory in parse_paragraph, which could lead to a heap buffer overflow. An attacker could potentially use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-34119)

It was discovered that HTMLDOC incorrectly handled memory in parse_tree. An attacker could potentially use this issue to leak sensitive information. (CVE-2021-34121)