Application crash via unchecked null string
Published May 31, 2023 · Updated Jan 9, 2025
NULL pointer dereference in GPAC before 2.2.2 allows local users to crash MP4Box by processing a crafted binary XML file. The XML SAX path passes an entity value that can be null to xml_sax_append_string, which calls strlen without first checking the pointer. A low-privileged local user must cause MP4Box's -bin operation to parse the crafted file; the demonstrated result is process termination, not code execution.
Summary
What happened
NULL pointer dereference in GPAC before 2.2.2 allows local users to crash MP4Box by processing a crafted binary XML file. The XML SAX path passes an entity value that can be null to xml_sax_append_string, which calls strlen without first checking the pointer. A low-privileged local user must cause MP4Box's -bin operation to parse the crafted file; the demonstrated result is process termination, not code execution.
The record
- CVE
- CVE-2023-3012
- Published
- May 31, 2023
- Updated
- Jan 9, 2025
- Vendor
- GPAC Project
- Product
- GPAC
- Classifications
- CWE-476, T1499.004
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 31, 2023CVE publishedPublication date reported by the CVE source.
- Jan 9, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <2.2.2
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Crafted binary XML crash proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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