Redhat Virtualization Host vulnerabilities

CVE-2020-25717 [HIGH] CWE-20 CVE-2020-25717: A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could A flaw was found in the way Samba maps domain users to local users. An authenticated attacker could use this flaw to cause possible privilege escalation.

CVE-2016-2124 [MEDIUM] CWE-287 CVE-2016-2124: A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw t A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required.

CVE-2021-3752 [HIGH] CWE-416 CVE-2021-3752: A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls conn A use-after-free flaw was found in the Linux kernel’s Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

CVE-2021-3560 [HIGH] CWE-863 CVE-2021-3560: It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, e It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as

CVE-2021-45417 [HIGH] CWE-787 CVE-2021-45417: AIDE before 0.17.4 allows local users to obtain root privileges via crafted file metadata (such as X AIDE before 0.17.4 allows local users to obtain root privileges via crafted file metadata (such as XFS extended attributes or tmpfs ACLs), because of a heap-based buffer overflow.

CVE-2021-3621 [HIGH] CWE-77 CVE-2021-3621: A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the A flaw was found in SSSD, where the sssctl command was vulnerable to shell command injection via the logs-fetch and cache-expire subcommands. This flaw allows an attacker to trick the root user into running a specially crafted sssctl command, such as via sudo, to gain root access. The highest threat from this vulnerability is to confidentiality, integrit

CVE-2021-3501 [HIGH] CWE-787 CVE-2021-3501: A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KV A flaw was found in the Linux kernel in versions before 5.12. The value of internal.ndata, in the KVM API, is mapped to an array index, which can be updated by a user process at anytime which could lead to an out-of-bounds write. The highest threat from this vulnerability is to data integrity and system availability.

CVE-2020-10711 [MEDIUM] CWE-476 CVE-2020-10711: A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option (CIPSO) protocol's category bitmap into the SELinux extensible bitmap via the' ebitmap_netlbl_import' routine. While processing the CIPSO restricted bitmap tag in the 'cipso_v4_p

CVE-2019-14821 [HIGH] CWE-787 CVE-2019-14821: An out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Li An out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Linux kernel's KVM hypervisor implements the Coalesced MMIO write operation. It operates on an MMIO ring buffer 'struct kvm_coalesced_mmio' object, wherein write indices 'ring->first' and 'ring->last' value could be supplied by a host user-space process.

CVE-2019-14835 [HIGH] CWE-120 CVE-2019-14835: A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their pr

CVE-2019-1125 [MEDIUM] CVE-2019-1125: An information disclosure vulnerability exists when certain central processing units (CPU) speculati An information disclosure vulnerability exists when certain central processing units (CPU) speculatively access memory. An attacker who successfully exploited the vulnerability could read privileged data across trust boundaries. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The v

CVE-2019-10161 [HIGH] CWE-284 CVE-2019-10161: It was discovered that libvirtd before versions 4.10.1 and 5.4.1 would permit read-only clients to u It was discovered that libvirtd before versions 4.10.1 and 5.4.1 would permit read-only clients to use the virDomainSaveImageGetXMLDesc() API, specifying an arbitrary path which would be accessed with the permissions of the libvirtd process. An attacker with access to the libvirtd socket could use this to probe the existence of arbitrary files, cause

CVE-2019-11479 [HIGH] CWE-405 CVE-2019-11479: Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, a

CVE-2019-3888 [CRITICAL] CWE-532 CVE-2019-3888: A vulnerability was found in Undertow web server before 2.0.21. An information exposure of plain tex A vulnerability was found in Undertow web server before 2.0.21. An information exposure of plain text credentials through log files because Connectors.executeRootHandler:402 logs the HttpServerExchange object at ERROR level using UndertowLogger.REQUEST_LOGGER.undertowRequestFailed(t, exchange)

CVE-2019-3460 [MEDIUM] CWE-20 CVE-2019-3460: A heap data infoleak in multiple locations including L2CAP_PARSE_CONF_RSP was found in the Linux ker A heap data infoleak in multiple locations including L2CAP_PARSE_CONF_RSP was found in the Linux kernel before 5.1-rc1.

CVE-2019-1559 [MEDIUM] CWE-203 CVE-2019-1559: If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to sen If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received with an invalid MAC. If the application then behave

CVE-2018-16881 [HIGH] CWE-190 CVE-2018-16881: A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send A denial of service vulnerability was found in rsyslog in the imptcp module. An attacker could send a specially crafted message to the imptcp socket, which would cause rsyslog to crash. Versions before 8.27.0 are vulnerable.

CVE-2018-18397 [MEDIUM] CWE-863 CVE-2018-18397: The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certa The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO_ ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file (if the user has read-only access to that file, and that file contains holes), related to fs/userfaultfd.c and mm/userfaultfd.c.

CVE-2018-14660 [MEDIUM] CWE-400 CVE-2018-14660: A flaw was found in glusterfs server through versions 4.1.4 and 3.1.2 which allowed repeated usage o A flaw was found in glusterfs server through versions 4.1.4 and 3.1.2 which allowed repeated usage of GF_META_LOCK_KEY xattr. A remote, authenticated attacker could use this flaw to create multiple locks for single inode by using setxattr repetitively resulting in memory exhaustion of glusterfs server node.

CVE-2018-14659 [MEDIUM] CWE-400 CVE-2018-14659: The Gluster file system through versions 4.1.4 and 3.1.2 is vulnerable to a denial of service attack The Gluster file system through versions 4.1.4 and 3.1.2 is vulnerable to a denial of service attack via use of the 'GF_XATTR_IOSTATS_DUMP_KEY' xattr. A remote, authenticated attacker could exploit this by mounting a Gluster volume and repeatedly calling 'setxattr(2)' to trigger a state dump and create an arbitrary number of files in the server's ru