CVE-2019-17362: Debian Linux

Critical severity, CVSS 9.1. EPSS: 3.1% chance of exploitation in the next 30 days.

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.

Affected products

  • Debian Debian Linux: version 8.0 only
  • Libtom Libtomcrypt: up to and including 1.18.2

Published 2019-10-09. Last modified 2026-06-17.