CVE-2018-6548: Use After Free
First published: Fri Feb 02 2018(Updated: )
A use-after-free issue was discovered in libwebm through 2018-02-02. If a Vp9HeaderParser was initialized once before, its property frame_ would not be changed because of code in vp9parser::Vp9HeaderParser::SetFrame. Its frame_ could be freed while the corresponding pointer would not be updated, leading to a dangling pointer. This is related to the function OutputCluster in webm_info.cc.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Webmproject Libwebm | <=1.0.0.27 |
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Reference Links
Frequently Asked Questions
What is CVE-2018-6548?
CVE-2018-6548 is a use-after-free vulnerability in libwebm through 2018-02-02.
What is the severity of CVE-2018-6548?
CVE-2018-6548 has a severity rating of 9.8, which is considered critical.
How does CVE-2018-6548 affect Webmproject Libwebm?
CVE-2018-6548 affects Webmproject Libwebm version 1.0.0.27 and earlier.
What is the common weakness enumeration (CWE) ID for CVE-2018-6548?
CVE-2018-6548 is associated with CWE-416, which is a use-after-free vulnerability.
How can I fix CVE-2018-6548?
To fix CVE-2018-6548, update to a version of Webmproject Libwebm that is later than 1.0.0.27.
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