CVE-2021-26291 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 4, 2024
What is CVE-2021-22555?
CVE-2021-22555 is a high-severity heap out-of-bounds write vulnerability in the net/netfilter/x_tables.c component of the Linux kernel, affecting versions since 2.6.19-rc1. This vulnerability allows an attacker to gain privileges or cause a Denial of Service (DoS) through user namespace. It is crucial for organizations to address this issue to protect their infrastructure.
Who is impacted by this?
CVE-2021-22555 affects users running Linux kernel versions from 2.6.19-rc1 to 5.12, including various software like Brocade Fabric Operating System, NetApp FAS 8300 Firmware, and NetApp AFF A400 Firmware. This vulnerability can allow an attacker to gain privileges or cause a denial of service, putting a wide range of Linux-based systems at risk.
What to do if CVE-2021-26291 affected you
If you're affected by the CVE-2021-26291 vulnerability, it's crucial to take action to protect your systems. Here's a simple step-by-step guide:
Update to Apache Maven version 3.8.1 or later to benefit from the new default behavior that no longer follows non-SSL (http) repository references.
If you're using a repository manager to govern the repositories used by your builds, you're unaffected by this vulnerability and don't need to take further action.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2021-26291 vulnerability in Apache Maven is listed in CISA's Known Exploited Vulnerabilities Catalog. Added on April 23, 2021, the required action is to update Apache Maven to version 3.8.1 or later. This mitigates the risk associated with Maven following repositories defined in a dependency's Project Object Model, which could lead to potential risks if a malicious actor takes over the repository or pretends to be that repository.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-346, an origin validation error in Apache Maven's handling of repositories.
Learn More
To learn more about this vulnerability, its severity, technical details, and affected software configurations, refer to the National Vulnerability Database or the sources listed below.
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
CVE-2021-26291 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 4, 2024
What is CVE-2021-22555?
CVE-2021-22555 is a high-severity heap out-of-bounds write vulnerability in the net/netfilter/x_tables.c component of the Linux kernel, affecting versions since 2.6.19-rc1. This vulnerability allows an attacker to gain privileges or cause a Denial of Service (DoS) through user namespace. It is crucial for organizations to address this issue to protect their infrastructure.
Who is impacted by this?
CVE-2021-22555 affects users running Linux kernel versions from 2.6.19-rc1 to 5.12, including various software like Brocade Fabric Operating System, NetApp FAS 8300 Firmware, and NetApp AFF A400 Firmware. This vulnerability can allow an attacker to gain privileges or cause a denial of service, putting a wide range of Linux-based systems at risk.
What to do if CVE-2021-26291 affected you
If you're affected by the CVE-2021-26291 vulnerability, it's crucial to take action to protect your systems. Here's a simple step-by-step guide:
Update to Apache Maven version 3.8.1 or later to benefit from the new default behavior that no longer follows non-SSL (http) repository references.
If you're using a repository manager to govern the repositories used by your builds, you're unaffected by this vulnerability and don't need to take further action.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2021-26291 vulnerability in Apache Maven is listed in CISA's Known Exploited Vulnerabilities Catalog. Added on April 23, 2021, the required action is to update Apache Maven to version 3.8.1 or later. This mitigates the risk associated with Maven following repositories defined in a dependency's Project Object Model, which could lead to potential risks if a malicious actor takes over the repository or pretends to be that repository.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-346, an origin validation error in Apache Maven's handling of repositories.
Learn More
To learn more about this vulnerability, its severity, technical details, and affected software configurations, refer to the National Vulnerability Database or the sources listed below.
Rapidly implement a modern Zero Trust network that is more secure and maintainable than VPNs.
CVE-2021-26291 Report - Details, Severity, & Advisories
Twingate Team
•
Jul 4, 2024
What is CVE-2021-22555?
CVE-2021-22555 is a high-severity heap out-of-bounds write vulnerability in the net/netfilter/x_tables.c component of the Linux kernel, affecting versions since 2.6.19-rc1. This vulnerability allows an attacker to gain privileges or cause a Denial of Service (DoS) through user namespace. It is crucial for organizations to address this issue to protect their infrastructure.
Who is impacted by this?
CVE-2021-22555 affects users running Linux kernel versions from 2.6.19-rc1 to 5.12, including various software like Brocade Fabric Operating System, NetApp FAS 8300 Firmware, and NetApp AFF A400 Firmware. This vulnerability can allow an attacker to gain privileges or cause a denial of service, putting a wide range of Linux-based systems at risk.
What to do if CVE-2021-26291 affected you
If you're affected by the CVE-2021-26291 vulnerability, it's crucial to take action to protect your systems. Here's a simple step-by-step guide:
Update to Apache Maven version 3.8.1 or later to benefit from the new default behavior that no longer follows non-SSL (http) repository references.
If you're using a repository manager to govern the repositories used by your builds, you're unaffected by this vulnerability and don't need to take further action.
Is this in CISA’s Known Exploited Vulnerabilities Catalog?
The CVE-2021-26291 vulnerability in Apache Maven is listed in CISA's Known Exploited Vulnerabilities Catalog. Added on April 23, 2021, the required action is to update Apache Maven to version 3.8.1 or later. This mitigates the risk associated with Maven following repositories defined in a dependency's Project Object Model, which could lead to potential risks if a malicious actor takes over the repository or pretends to be that repository.
Weakness Enumeration
The weakness enumeration for this vulnerability is categorized as CWE-346, an origin validation error in Apache Maven's handling of repositories.
Learn More
To learn more about this vulnerability, its severity, technical details, and affected software configurations, refer to the National Vulnerability Database or the sources listed below.
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