What’s Vulnerable › Vulnerabilities

CVE-2019-17362

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-10-09 · updated 2026-06-17
• Weakness: CWE-125

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.

Affected products

• Debian Linux: 8.0
• Libtomcrypt: through 1.18.2

References

• 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
• https://github.com/libtom/libtomcrypt/pull/508
• https://lists.debian.org/debian-lts-announce/2019/10/msg00010.html
• 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
• 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
• https://github.com/libtom/libtomcrypt/pull/508

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