CVE-2022-0534

A vulnerability was found in htmldoc version 1.9.15 where the stack out-of-bounds read takes place in gif_get_code() and occurs when opening a malicious GIF file, which can result in a crash (segmentation fault).

A vulnerability was found in htmldoc version 1.9.15 where the stack out-of-bounds read takes place in gif_get_code() and occurs when opening a malicious GIF file, which can result in a crash (segmentation fault). (CVE-2022-0534)

This update for htmldoc fixes the following issues:

• CVE-2019-19630: Fixed stack-based buffer overflow in the hd_strlcpy() function in string.c via a crafted HTML document (bsc#1158802).
• CVE-2021-20308: Fixed integer overflow in image_load_gif() (bsc#1184424).
• CVE-2022-0534: Fixed stack out-of-bounds read in gif_get_code() when opening a malicious GIF file results in a segmentation fault (bsc#1195758).

It was discovered that HTMLDOC incorrectly handled memory in the image_set_mask, git_read_lzw, write_header and write_node functions, which could lead to a heap buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2022-0137, CVE-2022-24191, CVE-2022-34033, CVE-2022-34035)

It was discovered that HTMLDOC incorrectly handled memory in the gif_get_code function, which could lead to a segmentation fault. If a user or application were tricked into opening a crafted GIF file, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2022-0534)

It was discovered that HTMLDOC did not perform proper bounds checks on image dimensions when loading JPEG images, which could lead to a buffer overflow. If a user or application were tricked into opening a crafted JPEG image, an attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-27114)

It was discovered that HTMLDOC incorrectly handled memory in the pdf_write_names function, which could lead to a heap buffer overflow. If a user or application were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service or leak sensitive information. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2022-28085)

It was discovered that HTMLDOC could be made to write out of bounds when attempting to strip whitespace. An attacker could use this issue to cause a denial of service or execute arbitrary code. (CVE-2024-45508)

It was discovered that HTMLDOC incorrectly handled memory in the parse_pre function, which could lead to a heap buffer overflow. If a user or application were tricked into opening a specially crafted file, an attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2024-46478)