CVE-2017-9146

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.4% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-05-22 · updated 2026-06-17
Weakness: CWE-119

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.

Affected products

ytnef: through 1.9.2

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=862707
https://github.com/Yeraze/ytnef/issues/47
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/
https://usn.ubuntu.com/3667-1/
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=862707
https://github.com/Yeraze/ytnef/issues/47
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/
https://usn.ubuntu.com/3667-1/

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