Ubuntu alert USN-7189-1 (HTMLDOC)
| From: | Bruce Cable <bruce.cable@canonical.com> | |
| To: | ubuntu-security-announce@lists.ubuntu.com | |
| Subject: | [USN-7189-1] HTMLDOC vulnerabilities | |
| Date: | Wed, 08 Jan 2025 15:14:11 +1100 | |
| Message-ID: | <5e402469-b139-4faa-a0a1-8f0b67b812cf@canonical.com> |
========================================================================== Ubuntu Security Notice USN-7189-1 January 08, 2025 HTMLDOC vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: Several security issues were fixed in HTMLDOC. Software Description: - htmldoc: HTML processor that generates indexed HTML, PS, and PDF Details: 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) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS htmldoc 1.9.7-1ubuntu0.3+esm1 Available with Ubuntu Pro Ubuntu 18.04 LTS htmldoc 1.9.2-1ubuntu0.2+esm1 Available with Ubuntu Pro Ubuntu 16.04 LTS htmldoc 1.8.27-8ubuntu1.1+esm2 Available with Ubuntu Pro Ubuntu 14.04 LTS htmldoc 1.8.27-8ubuntu1+esm3 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7189-1 CVE-2021-20308, CVE-2021-23158, CVE-2021-23191, CVE-2021-23206, CVE-2021-26252, CVE-2021-26259, CVE-2021-26948, CVE-2021-34119, CVE-2021-34121, CVE-2021-40985, CVE-2021-43579
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