CVSS: 7.5EPSS: 1%CPEs: 9EXPL: 0CVE-2021-36222 – krb5: Sending a request containing PA-ENCRYPTED-CHALLENGE padata element without using FAST could result in NULL dereference in KDC which leads to DoS
https://notcve.org/view.php?id=CVE-2021-36222
ec_verify in kdc/kdc_preauth_ec.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) before 1.18.4 and 1.19.x before 1.19.2 allows remote attackers to cause a NULL pointer dereference and daemon crash. This occurs because a return value is not properly managed in a certain situation. La función ec_verify en el archivo kdc/kdc_preauth_ec.c en el Centro de Distribución de Claves (KDC) en MIT Kerberos 5 (también se conoce como krb5) versiones anteriores a 1.18.4 y versiones 1.19.x anteriores a 1.19.2, permite a atacantes remotos causar una desreferencia de puntero NULL y un bloqueo del daemon. Esto ocurre porque un valor de retorno no es manejado apropiadamente en una situación determinada A flaw was found in krb5. This flaw allows an unauthenticated attacker to cause a NULL dereference in the KDC by sending a request containing a PA-ENCRYPTED-CHALLENGE padata element without using FAST. • https://github.com/krb5/krb5/commit/fc98f520caefff2e5ee9a0026fdf5109944b3562 https://github.com/krb5/krb5/releases https://security.netapp.com/advisory/ntap-20211022-0003 https://security.netapp.com/advisory/ntap-20211104-0007 https://web.mit.edu/kerberos/advisories https://www.debian.org/security/2021/dsa-4944 https://www.oracle.com/security-alerts/cpuoct2021.html https://access.redhat.com/security/cve/CVE-2021-36222 https://bugzilla.redhat.com/show_bug.cgi?id=1983720 • CWE-476: NULL Pointer Dereference •
CVSS: 6.8EPSS: 0%CPEs: 2EXPL: 0CVE-2021-2444 – mysql: Server: Optimizer unspecified vulnerability (CPU Jul 2021)
https://notcve.org/view.php?id=CVE-2021-2444
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.23 and prior. Easily exploitable vulnerability allows high 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. CVSS 3.1 Base Score 4.9 (Availability impacts). • https://security.netapp.com/advisory/ntap-20210723-0001 https://www.oracle.com/security-alerts/cpujul2021.html https://access.redhat.com/security/cve/CVE-2021-2444 https://bugzilla.redhat.com/show_bug.cgi?id=1992326 •
CVSS: 4.9EPSS: 0%CPEs: 2EXPL: 0CVE-2021-2441 – mysql: Server: Optimizer unspecified vulnerability (CPU Jul 2021)
https://notcve.org/view.php?id=CVE-2021-2441
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.25 and prior. Easily exploitable vulnerability allows high 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. CVSS 3.1 Base Score 4.9 (Availability impacts). • https://security.netapp.com/advisory/ntap-20210723-0001 https://www.oracle.com/security-alerts/cpujul2021.html https://access.redhat.com/security/cve/CVE-2021-2441 https://bugzilla.redhat.com/show_bug.cgi?id=1992325 •
CVSS: 6.8EPSS: 0%CPEs: 2EXPL: 0CVE-2021-2440 – mysql: Server: DML unspecified vulnerability (CPU Jul 2021)
https://notcve.org/view.php?id=CVE-2021-2440
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 8.0.25 and prior. Easily exploitable vulnerability allows high 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. CVSS 3.1 Base Score 4.9 (Availability impacts). • https://security.netapp.com/advisory/ntap-20210723-0001 https://www.oracle.com/security-alerts/cpujul2021.html https://access.redhat.com/security/cve/CVE-2021-2440 https://bugzilla.redhat.com/show_bug.cgi?id=1992324 •
CVSS: 4.9EPSS: 0%CPEs: 2EXPL: 0CVE-2021-2437 – mysql: Server: Optimizer unspecified vulnerability (CPU Jul 2021)
https://notcve.org/view.php?id=CVE-2021-2437
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.25 and prior. Easily exploitable vulnerability allows high 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. CVSS 3.1 Base Score 4.9 (Availability impacts). • https://security.netapp.com/advisory/ntap-20210723-0001 https://www.oracle.com/security-alerts/cpujul2021.html https://access.redhat.com/security/cve/CVE-2021-2437 https://bugzilla.redhat.com/show_bug.cgi?id=1992323 •