CVE-2019-17362
First published: Wed Oct 09 2019(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Libtom Libtomcrypt | <=1.18.2 | |
| Debian Debian Linux | =8.0 |
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Reference Links
- 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://vuldb.com/?id.142995
- 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/
Frequently Asked Questions
What is CVE-2019-17362?
CVE-2019-17362 is a vulnerability in LibTomCrypt through 1.18.2 that allows context-dependent attackers to cause a denial of service or read information from other memory locations.
How does CVE-2019-17362 impact LibTomCrypt?
CVE-2019-17362 can lead to an out-of-bounds read and crash, or allow attackers to read information from other memory locations in LibTomCrypt.
What is the severity of CVE-2019-17362?
The severity of CVE-2019-17362 is critical with a CVSS score of 9.1.
How can context-dependent attackers exploit CVE-2019-17362?
Context-dependent attackers can exploit CVE-2019-17362 to cause a denial of service or read information from other memory locations in LibTomCrypt.
Are there any patches or fixes available for CVE-2019-17362?
At the time of this writing, patches or fixes for CVE-2019-17362 may be available from the official LibTomCrypt website or the relevant software vendor.
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