CVE-2017-9473
In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a...
CVE-2017-9473 is a medium vulnerability (CVSS 5.5) in Ytnef Project Ytnef, published June 7, 2017. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.19%, the 68th percentile. Fixed in libytnef 1.9.3-1.
- Severity
- 5.5 MediumCVSS 3.0, NVD
- Exploit chance
- 1.19%EPSS, 68th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
1.9.3-1libytnef +6 more
Description
In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a denial of service (memory consumption) via a crafted file.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libytnefDebian:12 | before 1.9.3-1 | 1.9.3-1 |
libytnefDebian:13 | before 1.9.3-1 | 1.9.3-1 |
libytnefDebian:14 | before 1.9.3-1 | 1.9.3-1 |
libytnefUbuntu:14.04:LTS | before 1.5-6ubuntu0.2, plus listed versions 1.5-51.5-61.5-6ubuntu0.1 | 1.5-6ubuntu0.2 |
libytnefUbuntu:16.04:LTS | All versions, plus listed versions 1.5-61.5-91.5-9ubuntu0.1 | None known |
libytnefUbuntu:18.04:LTS | All versions, plus listed versions 1.9.2-2 | None known |
libytnefUbuntu:14.04:LTS From an advisory covering 5 CVEs | before 1.5-6ubuntu0.2, plus listed versions 1.5-51.5-61.5-6ubuntu0.1 | 1.5-6ubuntu0.2 |
What each source reports
NVD Score used
In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a denial of service (memory consumption) via a crafted file.
- Record
CVE-2017-9473- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE ListNo score
In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a denial of service (memory consumption) via a crafted file.
- Record
CVE-2017-9473- Updated
- 2026-11-02
EUVDEUVD-2017-18405No score
In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a denial of service (memory consumption) via a crafted file.
- Record
EUVD-2017-18405- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-f94h-w96q-8548
In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a...
In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a denial of service (memory consumption) via a crafted file.
- Record
GHSA-f94h-w96q-8548- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSV
In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a denial of service (memory consumption) via a crafted file.
- Record
CVE-2017-9473- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVDEBIAN-CVE-2017-9473
In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a denial of service (memory consumption) via a crafted file.
- Record
DEBIAN-CVE-2017-9473- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2017-9473
In ytnef 1.9.2, the TNEFFillMapi function in lib/ytnef.c allows remote attackers to cause a denial of service (memory consumption) via a crafted file.
- Record
UBUNTU-CVE-2017-9473- CVSS 3.0
- 5.5 Medium
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUSN-3667-1No score
libytnef vulnerabilities
It was discovered that libytnef incorrectly handled certain files. An attacker could possibly use this to cause a denial of service. (CVE-2017-12141, CVE-2017-9146, CVE-2017-9471, CVE-2017-9473)
It was discovered that libytnef incorrectly handled certain files. An attacker could possibly use this to access sensitive information. (CVE-2017-9058)
- Record
USN-3667-1- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
usn.ubuntu.com/3667-1
blogs.gentoo.org/ago/2017/05/24/ytnef-memory-allocation-failure-in-tneffillmapi-ytnef-c
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ
nvd.nist.gov/vuln/detail/CVE-2017-9473
github.com/advisories/GHSA-f94h-w96q-8548