+5.9.2: + security: + - These two CVEs can be exploited by a user with read-only credentials: + - CVE-2022-24805 A buffer overflow in the handling of the INDEX of + NET-SNMP-VACM-MIB can cause an out-of-bounds memory access. + - CVE-2022-24809 A malformed OID in a GET-NEXT to the nsVacmAccessTable + can cause a NULL pointer dereference. + - These CVEs can be exploited by a user with read-write credentials: + - CVE-2022-24806 Improper Input Validation when SETing malformed + OIDs in master agent and subagent simultaneously + - CVE-2022-24807 A malformed OID in a SET request to + SNMP-VIEW-BASED-ACM-MIB::vacmAccessTable can cause an + out-of-bounds memory access. + - CVE-2022-24808 A malformed OID in a SET request to + NET-SNMP-AGENT-MIB::nsLogTable can cause a NULL pointer dereference + - CVE-2022-24810 A malformed OID in a SET to the nsVacmAccessTable + can cause a NULL pointer dereference. + - To avoid these flaws, use strong SNMPv3 credentials and do not share them. + If you must use SNMPv1 or SNMPv2c, use a complex community string + and enhance the protection by restricting access to a given IP address range. + - Thanks are due to Yu Zhang of VARAS@IIE and Nanyu Zhong of VARAS@IIE for + reporting the following CVEs that have been fixed in this release, and + to Arista Networks for providing fixes.
A vulnerability was found in Unbound due to incorrect default permissions, allowing any process outside the unbound group to modify the unbound runtime configuration. If a process can connect over localhost to port 8953, it can alter the configuration of unbound.service. This flaw allows an unprivileged attacker to manipulate a running instance, potentially altering forwarders, allowing them to track all queries forwarded by the local resolver, and, in some cases, disrupting resolving altogether.
A use-after-free flaw was found in the netfilter subsystem of the Linux kernel. If the catchall element is garbage-collected when the pipapo set is removed, the element can be deactivated twice. This can cause a use-after-free issue on an NFTCHAIN object or NFTOBJECT object, allowing a local unprivileged user with CAPNETADMIN capability to escalate their privileges on the system.
A heap-based buffer overflow problem was found in glib through an incorrect calculation of buffer size in the gescapeuristring() function. If the string to escape contains a very large number of unacceptable characters (which would need escaping), the calculation of the length of the escaped string could overflow, leading to a potential write off the end of the newly allocated string.
A flaw was found in rsync which could be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length (s2length) to cause a comparison between a checksum and uninitialized memory and leak one byte of uninitialized stack data at a time.
A vulnerability was found in MariaDB. An OpenVAS port scan on ports 3306 and 4567 allows a malicious remote client to cause a denial of service.
From https://github.com/net-snmp/net-snmp/blob/v5.9.2/CHANGES CVE-2022-24806 Improper Input Validation when SETing malformed OIDs in master agent and subagent simultaneously
https://github.com/net-snmp/net-snmp/blob/v5.9.2/CHANGES
CVE-2022-24808 A malformed OID in a SET request to NET-SNMP-AGENT-MIB::nsLogTable can cause a NULL pointer dereference
CVE-2022-24807 A malformed OID in a SET request to SNMP-VIEW-BASED-ACM-MIB::vacmAccessTable can cause an out-of-bounds memory access. https://github.com/net-snmp/net-snmp/blob/v5.9.2/CHANGES
https://github.com/net-snmp/net-snmp/blob/v5.9.2/CHANGES CVE-2022-24809 A malformed OID in a GET-NEXT to the nsVacmAccessTable can cause a NULL pointer dereference.
A flaw was found in Booth, a cluster ticket manager. If a specially-crafted hash is passed to gcrymdgetalgodlen(), it may allow an invalid HMAC to be accepted by the Booth server.