high
8.8
CWE
119
Advisory Published
Updated

CVE-2017-9146: Buffer Overflow

First published: Mon May 22 2017(Updated: )

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.

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
ubuntu/libytnef<1.5-6ubuntu0.2
1.5-6ubuntu0.2
ubuntu/libytnef<1.9.3-1
1.9.3-1
debian/libytnef
1.9.3-1
1.9.3-3
2.0-1
2.1.2-1
ytnef<=1.9.2

Remedy

https://github.com/Yeraze/ytnef/commit/c576639e7e6bd9c7de0a288b9f94590d34ac9215

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2017-9146?

    CVE-2017-9146 has been classified as a high severity vulnerability due to its potential to cause denial of service through a heap-based buffer overflow.

  • How do I fix CVE-2017-9146?

    To fix CVE-2017-9146, you should upgrade to libytnef version 1.5-6ubuntu0.2 for Ubuntu or version 1.9.3-1 for other distributions.

  • What types of attacks can be executed due to CVE-2017-9146?

    CVE-2017-9146 can allow remote attackers to execute a denial of service attack, possibly leading to heap-based buffer overflow and application crashes.

  • Which software is affected by CVE-2017-9146?

    CVE-2017-9146 affects the libytnef library in versions prior to 1.9.3 and includes various distributions like Ubuntu and Debian.

  • Is CVE-2017-9146 exploit public?

    Yes, the details of CVE-2017-9146 are public, allowing attackers to potentially exploit the vulnerability if systems are not patched.

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