CVE-2021-3516
libxml2: Use-after-free in xmlEncodeEntitiesInternal() in entities.c
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
There's a flaw in libxml2's xmllint in versions before 2.9.11. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.
Se encontró un fallo en xmllint de libxml2 en versiones anteriores a 2.9.11. Un atacante que es capaz de enviar un archivo diseñado para ser procesado por xmllint podría desencadenar un uso de la memoria previamente liberada. El mayor impacto de este fallo es la confidencialidad, integridad y disponibilidad
There's a flaw in libxml2's xmllint. An attacker who is able to submit a crafted file to be processed by xmllint could trigger a use-after-free. The greatest impact of this flaw is to confidentiality, integrity, and availability.
Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience. This release adds the new Apache HTTP Server 2.4.37 Service Pack 11 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.37 Service Pack 10 and includes bug fixes and enhancements. Issues addressed include HTTP request smuggling, buffer overflow, bypass, null pointer, and use-after-free vulnerabilities.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-04-27 CVE Reserved
- 2021-06-01 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-416: Use After Free
CAPEC
References (10)
URL | Tag | Source |
---|---|---|
https://lists.debian.org/debian-lts-announce/2021/05/msg00008.html | Mailing List |
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https://security.netapp.com/advisory/ntap-20210716-0005 | Third Party Advisory |
|
URL | Date | SRC |
---|---|---|
https://gitlab.gnome.org/GNOME/libxml2/-/issues/230 | 2024-08-03 |
URL | Date | SRC |
---|---|---|
https://gitlab.gnome.org/GNOME/libxml2/-/commit/1358d157d0bd83be1dfe356a69213df9fac0b539 | 2023-11-07 | |
https://www.oracle.com/security-alerts/cpujan2022.html | 2023-11-07 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Xmlsoft Search vendor "Xmlsoft" | Xmllint Search vendor "Xmlsoft" for product "Xmllint" | < 2.9.11 Search vendor "Xmlsoft" for product "Xmllint" and version " < 2.9.11" | - |
Affected
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Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 33 Search vendor "Fedoraproject" for product "Fedora" and version "33" | - |
Affected
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Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
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Redhat Search vendor "Redhat" | Jboss Core Services Search vendor "Redhat" for product "Jboss Core Services" | - | - |
Affected
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Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 6.0 Search vendor "Redhat" for product "Enterprise Linux" and version "6.0" | - |
Affected
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Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
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Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
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Netapp Search vendor "Netapp" | Clustered Data Ontap Search vendor "Netapp" for product "Clustered Data Ontap" | - | - |
Affected
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Netapp Search vendor "Netapp" | Clustered Data Ontap Antivirus Connector Search vendor "Netapp" for product "Clustered Data Ontap Antivirus Connector" | - | - |
Affected
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Netapp Search vendor "Netapp" | Ontap Select Deploy Administration Utility Search vendor "Netapp" for product "Ontap Select Deploy Administration Utility" | - | - |
Affected
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Oracle Search vendor "Oracle" | Zfs Storage Appliance Kit Search vendor "Oracle" for product "Zfs Storage Appliance Kit" | 8.8 Search vendor "Oracle" for product "Zfs Storage Appliance Kit" and version "8.8" | - |
Affected
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