Allocation of Resources Without Limits or Throttling in ytnef - CVE-2017-12144
Published: August 2, 2017 / Updated: August 8, 2020
Vulnerability identifier: #VU38614
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/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-2017-12144
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Yeraze (Randall Hand)
Affected software:
ytnef
ytnef
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
In ytnef 1.9.2, an allocation failure was found in the function TNEFFillMapi in ytnef.c, which allows attackers to cause a denial of service via a crafted file.
How to mitigate CVE-2017-12144
Install update from vendor's website.
Sources
- http://www.securityfocus.com/bid/100098
- https://github.com/Yeraze/ytnef/issues/51
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/
- https://somevulnsofadlab.blogspot.com/2017/07/ytnefallocation-failed-in-tneffillmapi.html