NULL pointer dereference in Debian Linux - CVE-2017-6298
Published: February 24, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU39626
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/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-2017-6298
CWE-ID: CWE-476
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Debian
Affected software:
Debian Linux
Debian Linux
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
An issue was discovered in ytnef before 1.9.1. This is related to a patch described as "1 of 9. Null Pointer Deref / calloc return value not checked."
How to mitigate CVE-2017-6298
Install update from vendor's website.
Sources
- http://www.debian.org/security/2017/dsa-3846
- http://www.openwall.com/lists/oss-security/2017/02/15/4
- http://www.securityfocus.com/bid/96423
- https://github.com/Yeraze/ytnef/pull/27
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/
- https://www.x41-dsec.de/lab/advisories/x41-2017-002-ytnef/