High severity · published May 22, 2017
CVE-2017-9146
The TNEFFillMapi function in lib/ytnef.c in libytnef in ytnef through 1.9.2 does not ensure a nonzero count value before a certain memory allocation, which allows remote attackers…
8.8
CVSS
2.4%
EPSS
No
On KEV
Description
The TNEFFillMapi function in lib/ytnef.c in libytnef in ytnef through 1.9.2 does not ensure a nonzero count value before a certain memory allocation, which allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted tnef file.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.4% · higher than 84% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
YT
Ytnef · Ytnef Project
through 1.9.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-9146
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-9146
Third Party Advisory
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=862707
Exploit
https://github.com/Yeraze/ytnef/issues/47
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/
usn.ubuntu.com
https://usn.ubuntu.com/3667-1/
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