Cyrus Sasl
Monthly
Cyrus SASL clients that use the DIGEST-MD5 authentication mechanism can be crashed by a malicious or on-path server that supplies a crafted challenge field (such as realm or nonce), because the add_to_challenge() function computes a buffer size before DIGEST-MD5 quoting and fails to account for escaping that lengthens the value, resulting in a heap-based out-of-bounds write. This is a client-side denial-of-service flaw affecting Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and Red Hat OpenShift Container Platform 4; the assessed CVSS vector is AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H, meaning unauthenticated remote attackers must control or intercept the server endpoint and the victim must initiate authentication. No public exploit code or confirmed active exploitation is identified at time of analysis.
In Cyrus SASL 2.1.17 through 2.1.27 before 2.1.28, plugins/sql.c does not escape the password for a SQL INSERT or UPDATE statement. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This SQL Injection vulnerability could allow attackers to execute arbitrary SQL commands against the database.
cyrus-sasl (aka Cyrus SASL) 2.1.27 has an out-of-bounds write leading to unauthenticated remote denial-of-service in OpenLDAP via a malformed LDAP packet. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is returned upon an error by the crypt function as implemented in glibc 2.17 and later, which allows remote attackers. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.
Cyrus SASL clients that use the DIGEST-MD5 authentication mechanism can be crashed by a malicious or on-path server that supplies a crafted challenge field (such as realm or nonce), because the add_to_challenge() function computes a buffer size before DIGEST-MD5 quoting and fails to account for escaping that lengthens the value, resulting in a heap-based out-of-bounds write. This is a client-side denial-of-service flaw affecting Red Hat Enterprise Linux 6 through 10, Red Hat Hardened Images, and Red Hat OpenShift Container Platform 4; the assessed CVSS vector is AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:H, meaning unauthenticated remote attackers must control or intercept the server endpoint and the victim must initiate authentication. No public exploit code or confirmed active exploitation is identified at time of analysis.
In Cyrus SASL 2.1.17 through 2.1.27 before 2.1.28, plugins/sql.c does not escape the password for a SQL INSERT or UPDATE statement. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. This SQL Injection vulnerability could allow attackers to execute arbitrary SQL commands against the database.
cyrus-sasl (aka Cyrus SASL) 2.1.27 has an out-of-bounds write leading to unauthenticated remote denial-of-service in OpenLDAP via a malformed LDAP packet. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is returned upon an error by the crypt function as implemented in glibc 2.17 and later, which allows remote attackers. Rated medium severity (CVSS 4.3), this vulnerability is remotely exploitable. Public exploit code available and no vendor patch available.