Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 vulnerabilities
19 known vulnerabilities in Red Hat Virtualization 4 for Red Hat Enterprise Linux 8 from Red Hat. 19 are rated high or critical, and 1 has been exploited in real attacks. Each entry lists the affected versions and the release that fixes it, where the vendor has published one.
Latest first
- 7.1 High severity
Red Hat Enterprise Linux 8: Concurrent Execution using Shared Resource with Improper Synchronization
A race condition flaw was found in sssd where the GPO policy is not consistently applied for authenticated users. This may lead to improper authorization issues, granting or denying access to resources inappropriately.
- 7.5 High severity
Red Hat Enterprise Linux 8: NULL Pointer Dereference
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel
- 7.5 High severity
Red Hat Enterprise Linux 8: NULL Pointer Dereference
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver, causing kernel
- 7.5 High severity
Red Hat Enterprise Linux 8: NULL Pointer Dereference
A flaw was found in the Linux kernel's NVMe driver. This issue may allow an unauthenticated malicious actor to send a set of crafted TCP packages when using NVMe over TCP, leading the NVMe driver to a NULL pointer dereference in the NVMe driver and causing ker
- 7.8 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Write
An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileg
- 7.4 High severity
kernel: Integer Underflow (Wrap or Wraparound)
An out-of-bounds memory read flaw was found in receive_encrypted_standard in fs/smb/client/smb2ops.c in the SMB Client sub-component in the Linux Kernel. This issue occurs due to integer underflow on the memcpy length, leading to a denial of service.
- 7.8 High severity
Red Hat Enterprise Linux 8.6 Extended Update…: Use After Free
A use-after-free flaw was found in the Linux Kernel. When a disk is removed, bdi_unregister is called to stop further write-back and waits for associated delayed work to complete. However, wb_inode_writeback_end() may schedule bandwidth estimation work after t
- 7.0 High severity
Red Hat Enterprise Linux 8: Concurrent Execution using Shared Resource with Improper Synchronization
A race condition was found in the GSM 0710 tty multiplexor in the Linux kernel. This issue occurs when two threads execute the GSMIOC_SETCONF ioctl on the same tty file descriptor with the gsm line discipline enabled, and can lead to a use-after-free problem o
- 7.1 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Read
An out-of-bounds read vulnerability was found in smb2_dump_detail in fs/smb/client/smb2ops.c in the Linux Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.
- 7.1 High severity
Red Hat Enterprise Linux 8: Out-of-bounds Read
An out-of-bounds read vulnerability was found in smbCalcSize in fs/smb/client/netmisc.c in the Linux Kernel. This issue could allow a local attacker to crash the system or leak internal kernel information.
- 9.8 Critical severity
Red Hat Enterprise Linux 8: Improper Limitation of a Pathname to a Restricted Directory
A path traversal vulnerability was identified in Samba when processing client pipe names connecting to Unix domain sockets within a private directory. Samba typically uses this mechanism to connect SMB clients to remote procedure call (RPC) services like SAMR
- 8.8 High severity
Red Hat Enterprise Linux 8: Use After Free
A use-after-free vulnerability was found in drivers/nvme/target/tcp.c` in `nvmet_tcp_free_crypto` due to a logical bug in the NVMe/TCP subsystem in the Linux kernel. This issue may allow a malicious user to cause a use-after-free and double-free problem, which
- 7.8 High severity
GNU C Library Buffer Overflow Exploited
A buffer overflow was discovered in the GNU C Library's dynamic loader ld.so while processing the GLIBC_TUNABLES environment variable. This issue could allow a local attacker to use maliciously crafted GLIBC_TUNABLES environment variables when launching binari
- 7.8 High severity
Red Hat Enterprise Linux 7: Out-of-bounds Write
An array indexing vulnerability was found in the netfilter subsystem of the Linux kernel. A missing macro could lead to a miscalculation of the `h->nets` array offset, providing attackers with the primitive to arbitrarily increment/decrement a memory buffer ou
- 7.8 High severity
Red Hat Enterprise Linux 8: Use After Free
A use-after-free flaw was found in the Linux kernel's netfilter in the way a user triggers the nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local user to crash the system or potentially escalate their pri
- 7.8 High severity
Red Hat Enterprise Linux 8: Use After Free
An out-of-bounds memory access flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user generates a malicious (too big) networking packet when napi frags is enabled. This flaw allows a local user to crash or potentially escalate t
- 7.1 High severity
Red Hat Enterprise Linux 8: Use After Free
A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux Kernel. This issue may allow an attacker with local user access to cause a system crash or leak internal kernel information.
- 7.5 High severity
Red Hat Enterprise Linux 8: Loop with Unreachable Exit Condition
An infinite loop vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function sl_unpack_loop() did not validate a field in the network packet that contains th
- 7.0 High severity
Red Hat Enterprise Linux 8: Use After Free
A use-after-free flaw was found in btsdio_remove in drivers\bluetooth\btsdio.c in the Linux Kernel. A call to btsdio_remove with an unfinished job may cause a race problem which leads to a UAF on hdev devices.