There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.
CVE-2021-3517 - High Severity Vulnerability
Library home page: https://source.codeaurora.org/external/simcom/platform/external/libxml2/
Found in HEAD commit: 12b9a2156a638c2c012da785da0bc6105b0f5579
Found in base branch: master
There is a flaw in the xml entity encoding functionality of libxml2 in versions before 2.9.11. An attacker who is able to supply a crafted file to be processed by an application linked with the affected functionality of libxml2 could trigger an out-of-bounds read. The most likely impact of this flaw is to application availability, with some potential impact to confidentiality and integrity if an attacker is able to use memory information to further exploit the application.
Publish Date: 2021-05-19
URL: CVE-2021-3517
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: Low - Privileges Required: None - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: Low - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://nvd.nist.gov/vuln/detail/CVE-2021-3517
Release Date: 2021-05-19
Fix Resolution: libxml2-debugsource - 2.9.7-9,2.9.7-9;libxml2-debuginfo - 2.9.7-9,2.9.7-9;libxml2 - 2.9.7-9,2.9.7-9,2.9.7-9,2.9.7-9,2.9.7-9,2.9.7-9;python3-libxml2-debuginfo - 2.9.7-9,2.9.7-9;python3-libxml2 - 2.9.7-9,2.9.7-9,2.9.7-9,2.9.7-9;libxml2-devel - 2.9.7-9,2.9.7-9,2.9.7-9,2.9.7-9,2.9.7-9
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