Ubuntu update for htmldoc

1) Stack-based buffer overflow

EUVDB-ID: #VU23464

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-19630

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists in the "hd_strlcpy()" function in "string.c" (when called from "render_contents" in "ps-pdf.cxx") due to a boundary error when processing a crafted HTML document. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system

Mitigation

Update the affected package htmldoc to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 18.04

htmldoc (Ubuntu package): before 1.9.2-1ubuntu0.1

External links

http://ubuntu.com/security/notices/USN-4696-1

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.