Out-of-bounds read in xpdf - CVE-2018-8104
Published: March 14, 2018 / Updated: August 8, 2020
Vulnerability identifier: #VU37436
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2018-8104
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Glyph & Cog
Affected software:
xpdf
xpdf
Detailed vulnerability description
The vulnerability allows a remote attacker to perform denial of service (DoS) attack.
The vulnerability exists due to a boundary condition when processing a specific pdf file, as demonstrated by pdftohtml within the The BufStream::lookChar function in Stream.cc. A remote attacker can create a specially crafted file, pass it to the application, trigger out-of-bounds read error and crash the affected application.
How to mitigate CVE-2018-8104
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.