Vulnerability Details : 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 to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted tnef file.
Vulnerability category: OverflowDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2017-9146
Probability of exploitation activity in the next 30 days: 0.91%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 81 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2017-9146
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST |
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2017-9146
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-9146
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http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=862707
#862707 - libytnef: CVE-2017-9146: Heap-buffer overrun: write extra bytes in TNEFFillMapi - Debian Bug report logsThird Party Advisory
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https://usn.ubuntu.com/3667-1/
USN-3667-1: libytnef vulnerabilities | Ubuntu security notices
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ/
[SECURITY] Fedora 30 Update: ytnef-1.9.3-1.fc30 - package-announce - Fedora Mailing-Lists
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https://github.com/Yeraze/ytnef/issues/47
heap-buffer overrun: write extra bytes in TNEFFillMapi · Issue #47 · Yeraze/ytnef · GitHubExploit;Third Party Advisory
Products affected by CVE-2017-9146
- cpe:2.3:a:ytnef_project:ytnef:*:*:*:*:*:*:*:*