Redhat: >> Enterprise Linux >> 9.0 Security Vulnerabilities
A flaw was found in KVM. An improper check in svm_set_x2apic_msr_interception() may allow direct access to host x2apic msrs when the guest resets its apic, potentially leading to a denial of service condition.
CVSS Score
6.0
EPSS Score
0.002
Published
2023-11-06
A vulnerability was found in Samba's "rpcecho" development server, a non-Windows RPC server used to test Samba's DCE/RPC stack elements. This vulnerability stems from an RPC function that can be blocked indefinitely. The issue arises because the "rpcecho" service operates with only one worker in the main RPC task, allowing calls to the "rpcecho" server to be blocked for a specified time, causing service disruptions. This disruption is triggered by a "sleep()" call in the "dcesrv_echo_TestSleep()" function under specific conditions. Authenticated users or attackers can exploit this vulnerability to make calls to the "rpcecho" server, requesting it to block for a specified duration, effectively disrupting most services and leading to a complete denial of service on the AD DC. The DoS affects all other services as "rpcecho" runs in the main RPC task.
CVSS Score
6.5
EPSS Score
0.017
Published
2023-11-06
A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead (potentially overwriting the VM's boot code). This could be used, for example, by L2 guests with a virtual disk (vdiskL2) stored on a virtual disk of an L1 (vdiskL1) hypervisor to read and/or write data to LBA 0 of vdiskL1, potentially gaining control of L1 at its next reboot.
CVSS Score
6.4
EPSS Score
0.002
Published
2023-11-03
Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.
CVSS Score
8.6
EPSS Score
0.884
Published
2023-11-03
Squid is vulnerable to Denial of Service, where a remote attacker can perform DoS by sending ftp:// URLs in HTTP Request messages or constructing ftp:// URLs from FTP Native input.
CVSS Score
8.6
EPSS Score
0.102
Published
2023-11-03
A flaw was found in Squid. The limits applied for validation of HTTP response headers are applied before caching. However, Squid may grow a cached HTTP response header beyond the configured maximum size, causing a stall or crash of the worker process when a large header is retrieved from the disk cache, resulting in a denial of service.
CVSS Score
7.5
EPSS Score
0.052
Published
2023-11-03
SQUID is vulnerable to HTTP request smuggling, caused by chunked decoder lenience, allows a remote attacker to perform Request/Response smuggling past firewall and frontend security systems.
CVSS Score
9.3
EPSS Score
0.062
Published
2023-11-03
A vulnerability was found in PHP where setting the environment variable PHP_CLI_SERVER_WORKERS to a large value leads to a heap buffer overflow.
CVSS Score
6.2
EPSS Score
0.004
Published
2023-11-02
A vulnerability was found in Avahi. A reachable assertion exists in the avahi_alternative_host_name() function.
CVSS Score
6.2
EPSS Score
0.003
Published
2023-11-02
A vulnerability was found in Avahi, where a reachable assertion exists in avahi_dns_packet_append_record.
CVSS Score
6.2
EPSS Score
0.003
Published
2023-11-02