PT-2017-18946 · Ytnef+2 · Ytnef+2

Agostino Sarubbo · Published 2017-06-07 · Updated 2019-10-03 · CVE-2017-9473

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions ytnef version 1.9.2

Description The issue allows remote attackers to cause a denial of service, specifically memory consumption, by using a crafted file. This is related to the TNEFFillMapi function in lib/ytnef.c.

Recommendations For ytnef version 1.9.2, consider avoiding the use of the TNEFFillMapi function until a patch is available. As a temporary workaround, restrict the processing of crafted files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this issue.

Exploit

Fix

Related Identifiers

ALT-PU-2018-2051

CVE-2017-9473

USN-3667-1

Affected Products

Alt Linux

Ubuntu

Ytnef

References · 33

• 🔥 https://blogs.gentoo.org/ago/2017/05/24/ytnef-memory-allocation-failure-in-tneffillmapi-ytnef-c · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12141 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2017-9473 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LFJWMUEUC4ILH2HEOCYVVLQT654ZMCGQ · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-12141 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9473 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9474 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2017-9473 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-9471 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12142 · Security Note
• https://ubuntu.com/security/CVE-2017-9146 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2017-9473 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3667-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9471 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9473 · Security Note