9.1
CRITICAL
CVE-2019-17362
OpenSSL DER decode UTF8 String Buffer Overflow
Description

In LibTomCrypt through 1.18.2, the der_decode_utf8_string function (in der_decode_utf8_string.c) does not properly detect certain invalid UTF-8 sequences. This allows context-dependent attackers to cause a denial of service (out-of-bounds read and crash) or read information from other memory locations via carefully crafted DER-encoded data.

INFO

Published Date :

Oct. 9, 2019, 1:15 a.m.

Last Modified :

Dec. 14, 2023, 3:15 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.2

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2019-17362 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Libtom libtomcrypt
: Total Affected Vendor : 2 | Products : 2
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-17362.

URL Resource
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00041.html
https://github.com/libtom/libtomcrypt/issues/507 Exploit Third Party Advisory
https://github.com/libtom/libtomcrypt/pull/508 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00010.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/47YP5SXQ4RY6KMTK2HI5ZZR244XKRMCZ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YU5OMCY3PX54YVI4FMNDEENHDJZJ3RJW/
https://vuldb.com/?id.142995 Permissions Required

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-17362 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-17362 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Dec. 14, 2023

    Action Type Old Value New Value
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YU5OMCY3PX54YVI4FMNDEENHDJZJ3RJW/ [No types assigned]
    Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/47YP5SXQ4RY6KMTK2HI5ZZR244XKRMCZ/ [No types assigned]
  • CVE Modified by [email protected]

    Nov. 15, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00041.html [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 09, 2019

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00020.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Oct. 15, 2019

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
    Changed Reference Type https://github.com/libtom/libtomcrypt/issues/507 No Types Assigned https://github.com/libtom/libtomcrypt/issues/507 Exploit, Third Party Advisory
    Changed Reference Type https://github.com/libtom/libtomcrypt/pull/508 No Types Assigned https://github.com/libtom/libtomcrypt/pull/508 Patch, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2019/10/msg00010.html No Types Assigned https://lists.debian.org/debian-lts-announce/2019/10/msg00010.html Mailing List, Third Party Advisory
    Changed Reference Type https://vuldb.com/?id.142995 No Types Assigned https://vuldb.com/?id.142995 Permissions Required
    Added CWE NIST CWE-125
    Added CPE Configuration OR *cpe:2.3:a:libtom:libtomcrypt:*:*:*:*:*:*:*:* versions up to (including) 1.18.2
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 10, 2019

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2019/10/msg00010.html [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-17362 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-17362 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.83 }} 0.55%

score

0.86863

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: