Buffer Overflow vulnerability in authfile.c memcached 1.6.9 allows attackers to cause a denial of service via crafted authenticattion file.

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1779095842 advisory.

  - Buffer Overflow vulnerability in authfile.c memcached 1.6.9 allows attackers to cause a denial of service     via crafted authenticattion file. (CVE-2021-37519)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of memcached installed on the remote host is prior to 1.5.17-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2MEMCACHED1.5-2025-001 advisory.

    Buffer Overflow vulnerability in authfile.c memcached 1.6.9 allows attackers to cause a denial of service     via crafted authenticattion file. (CVE-2021-37519)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Buffer Overflow vulnerability in authfile.c memcached 1.6.9 allows attackers to cause a denial of service     via crafted authenticattion file. (CVE-2021-37519)

Note that Nessus relies on the presence of the package as reported by the vendor.

The versions of MySQL Server installed on the remote host are affected by multiple vulnerabilities as referenced in the January 2025 CPU advisory.

  - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Parser).  Supported versions that are     affected are 8.0.40 and prior, 8.4.3 and prior and  9.1.0 and prior. Easily exploitable vulnerability allows low     privileged attacker with network access via multiple protocols to compromise MySQL Server.  Successful attacks of     this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS)     of MySQL Server. (CVE-2025-21522)

  - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).  Supported versions that     are affected are 8.0.40 and prior, 8.4.3 and prior and  9.1.0 and prior. Easily exploitable vulnerability allows low     privileged attacker with network access via multiple protocols to compromise MySQL Server.  Successful attacks of this     vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of     MySQL Server. (CVE-2025-21518)

  - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer).  Supported versions that     are affected are 8.0.40 and prior, 8.4.3 and prior and  9.1.0 and prior. Easily exploitable vulnerability allows low     privileged attacker with network access via multiple protocols to compromise MySQL Server.  Successful attacks of this     vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of     MySQL Server. (CVE-2025-21501)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The versions of MySQL Server installed on the remote host are affected by a vulnerability as referenced in the January 2024 CPU advisory.

  - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Packaging (Kerberos)). Supported     versions that are affected are 8.0.39 and prior, 8.4.2 and prior and  9.0.1 and prior. Easily exploitable vulnerability     allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server.  Successful     attacks of this vulnerability can result in  unauthorized access to critical data or complete access to all MySQL     Server accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL     Server. (CVE-2024-37371)

  - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Packaging (OpenSSL)).
    Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Easily exploitable     vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL     Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete     access to all MySQL Server accessible data and unauthorized ability to cause a hang or frequently repeatable     crash (complete DOS) of MySQL Server. (CVE-2024-5535)

  - Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Packaging (curl)). Supported     versions that are affected are 8.0.39 and prior, 8.4.2 and prior and 9.0.1 and prior. Easily exploitable     vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server.
    Successful attacks require human interaction from a person other than the attacker. Successful attacks of     this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete     DOS) of MySQL Server. (CVE-2024-7264)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of memcached installed on the remote host is prior to 1.5.17-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2MEMCACHED1.5-2023-001 advisory.

    Buffer Overflow vulnerability in authfile.c memcached 1.6.9 allows attackers to cause a denial of service     via crafted authenticattion file. (CVE-2021-37519)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
362218	AlmaLinux 9.2 [TuxCare] Security Update: memcached / memcached-devel / memcached-selinux (ALMALINUX9.2:CLSA-2026:1779095842)	Nessus	Alma Linux Local Security Checks	Local	medium
261531	Amazon Linux 2 : memcached, --advisory ALAS2MEMCACHED1.5-2025-001 (ALASMEMCACHED1.5-2025-001)	Nessus	Amazon Linux Local Security Checks	Local	medium
224002	Linux Distros Unpatched Vulnerability : CVE-2021-37519	Nessus	Misc.	Local	medium
214534	Oracle MySQL Server 8.0.x < 8.0.41 (January 2025 CPU)	Nessus	Databases	Combined	medium
209248	Oracle MySQL Server 8.x < 8.4.3 (January 2025 CPU)	Nessus	Databases	Combined	critical
181975	Amazon Linux 2 : memcached (ALASMEMCACHED1.5-2023-001)	Nessus	Amazon Linux Local Security Checks	Local	medium

Detections

Analytics

CVE-2021-37519

medium

Tenable Plugins

medium

medium

medium

medium

critical

medium