CVE-2021-3517
- State
- Published
- Severity
- 8.6 High
- Published
- May 19, 2021
- Updated
- Oct 14, 2026
- Reserved
- Apr 27, 2021
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.6 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H | CISA-ADP |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
libxml2n/a |
|
References
- FEDORA-2021-e3ed1ba38bvendor-advisory
- [debian-lts-announce] 20210510 [SECURITY] [DLA 2653-1] libxml2 security updatemailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=1954232
- FEDORA-2021-b950000d2bvendor-advisory
- [bookkeeper-issues] 20210628 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8mailing-list
- [bookkeeper-issues] 20210629 [GitHub] [bookkeeper] padma81 opened a new issue #2746: Security Vulnerabilities in CentOS 7 image, Upgrade image to CentOS 8mailing-list
- GLSA-202107-05vendor-advisory
- https://security.netapp.com/advisory/ntap-20210625-0002/
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://security.netapp.com/advisory/ntap-20211022-0004/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujul2022.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
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