Bug 1775212 (CVE-2019-17362) - CVE-2019-17362 libtomcrypt: out-of-bounds read in the der_decode_utf8_string function in der_decode_utf8_string.c
Summary: CVE-2019-17362 libtomcrypt: out-of-bounds read in the der_decode_utf8_string ...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2019-17362
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1775215 1777090 1775214
Blocks: 1775219
TreeView+ depends on / blocked
 
Reported: 2019-11-21 15:05 UTC by Dhananjay Arunesh
Modified: 2021-02-16 21:00 UTC (History)
15 users (show)

Fixed In Version:
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Last Closed: 2020-05-20 21:19:12 UTC
Embargoed:


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Description Dhananjay Arunesh 2019-11-21 15:05:42 UTC
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.

Reference:
https://github.com/libtom/libtomcrypt/pull/508
https://github.com/libtom/libtomcrypt/issues/507

Comment 1 Dhananjay Arunesh 2019-11-21 15:10:10 UTC
Created libtomcrypt tracking bugs for this issue:

Affects: epel-all [bug 1775215]
Affects: fedora-all [bug 1775214]

Comment 4 Borja Tarraso 2019-12-12 17:02:28 UTC
Statement:

Red Hat CloudForms 5.9, 5.10 and 5.11 are not affected as it does not ship anymore libtomcrypt library. Only CloudForms 5.8 which is EOL delivers libtomcrypt library.

Red Hat Ansible Engine 2.8 and 2.9 are not affected as it does not ship libtomcrypt library anymore and Ansible Engine 2.7 had deprecate it.

Comment 5 Product Security DevOps Team 2020-05-20 21:19:12 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-17362


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