HOMEVULNERABILITIESCVE-2019-17362
CRITICAL

CVE-2019-17362

CWE-125Published: October 9, 2019· Updated: Jun 17, 2026

9.1
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2019-17362 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), availability disruption (denial of service), with a CVSS base score of 9.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected Vendors & Products

Debian1 product(s)
debian linux
libtom1 product(s)
libtomcrypt
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/libtom/libtomcrypt/pull/508
PATCHhttps://github.com/libtom/libtomcrypt/pull/508
ADVISORYhttps://github.com/libtom/libtomcrypt/issues/507
ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/10/msg00010.html
ADVISORYhttps://github.com/libtom/libtomcrypt/issues/507
ADVISORYhttps://lists.debian.org/debian-lts-announce/2019/10/msg00010.html

All References (18)

→
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/507Exploit · Third Party Advisory
→
https://github.com/libtom/libtomcrypt/pull/508Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2019/10/msg00010.htmlMailing 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.142995Permissions Required
→
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/507Exploit · Third Party Advisory
→
https://github.com/libtom/libtomcrypt/pull/508Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2019/10/msg00010.htmlMailing 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/

Quick Facts

CVE IDCVE-2019-17362
CVSS Score9.1 / 10
SeverityCRITICAL
WeaknessCWE-125
CISA KEVNo
Affected2 vendor(s)
PublishedOct 9, 2019

Related CVEs (CWE-125)

CVE-2026-24826
10.0
CVE-2009-2523
10.0
CVE-2021-21777
10.0
CVE-2021-41556
10.0
CVE-2017-14451
10.0
CVE-2013-0767
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-17362 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
← All Vulnerabilities·Search for CVE-2019-17362·NVD