Bug 1769545 (CVE-2019-17533) - CVE-2019-17533 matio: improper null termination in Mat_VarReadNextInfo4 in mat4.c leads to heap-based overflow
Summary: CVE-2019-17533 matio: improper null termination in Mat_VarReadNextInfo4 in ma...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2019-17533
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:
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Depends On: 1769547 1769548 1769550
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-11-06 20:25 UTC by Guilherme de Almeida Suckevicz
Modified: 2019-11-07 00:51 UTC (History)
2 users (show)

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Last Closed: 2019-11-07 00:51:10 UTC
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Description Guilherme de Almeida Suckevicz 2019-11-06 20:25:11 UTC 
Mat_VarReadNextInfo4 in mat4.c in MATIO 1.5.17 omits a certain '\0' character, leading to a heap-based buffer over-read in strdup_vprintf when uninitialized memory is accessed.

References:
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=16856
https://github.com/tbeu/matio/commit/651a8e28099edb5fbb9e4e1d4d3238848f446c9a
Comment 1 Guilherme de Almeida Suckevicz 2019-11-06 20:25:28 UTC 
Created matio tracking bugs for this issue:

Affects: epel-6 [bug 1769547]
Affects: epel-7 [bug 1769548]
Comment 2 Guilherme de Almeida Suckevicz 2019-11-06 20:26:52 UTC 
Created matio tracking bugs for this issue:

Affects: fedora-all [bug 1769550]
Comment 3 Product Security DevOps Team 2019-11-07 00:51:10 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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