Out-of-bounds read in DISCOUNT - CVE-2018-12495
Published: January 14, 2019
Vulnerability identifier: #VU16961
CSH Severity: Low
CVSS v4: 6.7 [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]
CVE-ID: CVE-2018-12495
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to heap-based buffer over-read in the quoteblock function in markdown.c in libmarkdown.a. A remote attacker can perform a denial of service via a specially crafted file.
Affected software
DISCOUNT
Fedora
Opensuse
discount
Fedora
Opensuse
discount
How to mitigate CVE-2018-12495
Install update from vendor's website.
discount - addressed in versions 2.2.4-1.el7, 2.2.4-1.fc28