CPANSA-Net-Dropbear-2019-17362: Net-Dropbear vulnerability

Publisher giterlizzi Document category csaf_security_advisory
Initial release date 2019-10-09T00:00:00 Engine CSAF Perl Toolkit 0.25
Current release date 2019-10-09T00:00:00 Build Date
Current version 1 Status final
CVSS v3.1 Base Score 9.1 Severity Critical
Original language Language en
Also referred to

Vulnerability 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.

Vulnerabilities

CVE-2019-17362

Vulnerability 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.

Weakness CWE-125 : Out-of-bounds Read

Product status

Known affected
Product Score
Net-Dropbear less than 0
CVSS Version CVSS Vector CVSS Base Score CVSS Base Severity
3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H 9.1 Critical
2.0 AV:N/AC:L/Au:N/C:P/I:N/A:P 6.4 Medium
Fixed

giterlizzi

Namespace: https://github.com/giterlizzi/

gdt@cpan.org

References

Revision history

Version Date of the revision Summary of the revision
1 Wed Oct 9 00:00:00 2019 First release

Sharing rules

TLP:WHITE
For the TLP version see: https://www.first.org/tlp/