REDHAT-BUG-1665532: Null Pointer Dereference
First published: Fri Jan 11 2019(Updated: )
A vulnerability was found in libsolv through 0.7.2. There is a NULL pointer dereference at ext/testcase.c (function testcase_read) in libsolvext.a that will cause a denial of service. References: <a class="bz_bug_link bz_status_CLOSED bz_closed bz_public " title="CLOSED CURRENTRELEASE - CVE-2018-20532 libsolv: NULL pointer dereference in function testcase_read [rhel-8]" href="show_bug.cgi?id=1652605">https://bugzilla.redhat.com/show_bug.cgi?id=1652605</a> Upstream Patch: <a href="https://github.com/openSUSE/libsolv/pull/291">https://github.com/openSUSE/libsolv/pull/291</a>
| Affected Software | Affected Version | How to fix |
|---|---|---|
| CentOS Libsolv | <=0.7.2 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1652605
- https://github.com/openSUSE/libsolv/pull/291
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1665533
- https://access.redhat.com/errata/RHSA-2019:2290
- https://access.redhat.com/security/cve/cve-2018-20532
- https://bugzilla.redhat.com/show_bug.cgi?id=1665532
Frequently Asked Questions
What is the severity of REDHAT-BUG-1665532?
The severity of REDHAT-BUG-1665532 is classified as a denial of service vulnerability due to a NULL pointer dereference.
How do I fix REDHAT-BUG-1665532?
To fix REDHAT-BUG-1665532, update the libsolv package to a version later than 0.7.2.
Which software is affected by REDHAT-BUG-1665532?
REDHAT-BUG-1665532 affects the openSUSE libsolv package version up to and including 0.7.2.
What causes the vulnerability in REDHAT-BUG-1665532?
The vulnerability in REDHAT-BUG-1665532 is caused by a NULL pointer dereference in the function testcase_read in libsolvext.a.
Is there a known workaround for REDHAT-BUG-1665532?
There is no known workaround for REDHAT-BUG-1665532 other than applying the software update.
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