Improper Initialization in xpdf - CVE-2020-24996
Published: September 4, 2020 / Updated: September 12, 2020
Vulnerability identifier: #VU46665
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-24996
CWE-ID: CWE-665
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
xpdf
xpdf
Software vendor:
Glyph & Cog
Glyph & Cog
Description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
There is an invalid memory access in the function TextString::~TextString() located in Catalog.cc in Xpdf 4.0.2. It can be triggered by (for example) sending a crafted pdf file to the pdftohtml binary, which allows a remote attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact.
Remediation
Install update from vendor's website.