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RHSA-2022:1759
No affected components available
Red Hat Security Advisory: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update
The vulnerability requires local access to the device to be exploited. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information. There is a high impact on the integrity of the data. There is a high impact on the availability of the system.
Exploitation activity has been observed. Apply available patches or mitigations urgently.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
- CVE-2021-39251
A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-39262
A crafted NTFS image can cause an out-of-bounds access in ntfs_decompress in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-33286
In NTFS-3G versions < 2021.8.22, when a specially crafted unicode string is supplied in an NTFS image a heap buffer overflow can occur and allow for code execution.
Alias, EPSS 0.49% - CVE-2021-39259
A crafted NTFS image can trigger an out-of-bounds access, caused by an unsanitized attribute length in ntfs_inode_lookup_by_name, in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-35268
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS inode is loaded in the function ntfs_inode_real_open, a heap buffer overflow can occur allowing for code execution and escalation of privileges.
Alias, EPSS 0.49% - CVE-2021-35267
NTFS-3G versions < 2021.8.22, a stack buffer overflow can occur when correcting differences in the MFT and MFTMirror allowing for code execution or escalation of privileges when setuid-root.
Alias, EPSS 0.49% - CVE-2021-39256
A crafted NTFS image can cause a heap-based buffer overflow in ntfs_inode_lookup_by_name in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-33289
In NTFS-3G versions < 2021.8.22, when a specially crafted MFT section is supplied in an NTFS image a heap buffer overflow can occur and allow for code execution.
Alias, EPSS 0.49% - CVE-2021-39261
A crafted NTFS image can cause a heap-based buffer overflow in ntfs_compressed_pwrite in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-39260
A crafted NTFS image can cause an out-of-bounds access in ntfs_inode_sync_standard_information in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-39257
A crafted NTFS image with an unallocated bitmap can lead to a endless recursive function call chain (starting from ntfs_attr_pwrite), causing stack consumption in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-39253
A crafted NTFS image can cause an out-of-bounds read in ntfs_runlists_merge_i in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-39263
A crafted NTFS image can trigger a heap-based buffer overflow, caused by an unsanitized attribute in ntfs_get_attribute_value, in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-39252
A crafted NTFS image can cause an out-of-bounds read in ntfs_ie_lookup in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-35266
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS inode pathname is supplied in an NTFS image a heap buffer overflow can occur resulting in memory disclosure, denial of service and even code execution.
Alias, EPSS 0.49% - CVE-2021-33287
In NTFS-3G versions < 2021.8.22, when specially crafted NTFS attributes are read in the function ntfs_attr_pread_i, a heap buffer overflow can occur and allow for writing to arbitrary memory or denial of service of the application.
Alias, EPSS 0.49% - CVE-2021-39258
A crafted NTFS image can cause out-of-bounds reads in ntfs_attr_find and ntfs_external_attr_find in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-39254
A crafted NTFS image can cause an integer overflow in memmove, leading to a heap-based buffer overflow in the function ntfs_attr_record_resize, in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - CVE-2021-39255
A crafted NTFS image can trigger an out-of-bounds read, caused by an invalid attribute in ntfs_attr_find_in_attrdef, in NTFS-3G < 2021.8.22.
Alias, EPSS 0.49% - EUVD-2021-19997Alias
- EUVD-2021-19998Alias
- EUVD-2021-20000Alias
- EUVD-2021-21909Alias
- EUVD-2021-21910Alias
- EUVD-2021-21911Alias
- EUVD-2021-25613Alias
- EUVD-2021-25614Alias
- EUVD-2021-25615Alias
- EUVD-2021-25616Alias
- EUVD-2021-25617Alias
- EUVD-2021-25618Alias
- EUVD-2021-25619Alias
- EUVD-2021-25620Alias
- EUVD-2021-25621Alias
- EUVD-2021-25622Alias
- EUVD-2021-25623Alias
- EUVD-2021-25624Alias
- EUVD-2021-25625Alias
- CVE-2021-33285
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value, a heap buffer overflow can occur allowing for memory disclosure or denial of service. The vulnerability is caused by an out-of-bound buffer access which can be triggered by mounting a crafted ntfs partition. The root cause is a missing consistency check after reading an MFT record : the "bytes_in_use" field should be less than the "bytes_allocated" field. When it is not, the parsing of the records proceeds into the wild.
Alias, EPSS 0.49% - EUVD-2021-19996Alias
- CVE-2021-20196
A NULL pointer dereference flaw was found in the floppy disk emulator of QEMU. This issue occurs while processing read/write ioport commands if the selected floppy drive is not initialized with a block device. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Upstream, EPSS 0.47% - CVE-2021-33285
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute is supplied to the function ntfs_get_attribute_value, a heap buffer overflow can occur allowing for memory disclosure or denial of service. The vulnerability is caused by an out-of-bound buffer access which can be triggered by mounting a crafted ntfs partition. The root cause is a missing consistency check after reading an MFT record : the "bytes_in_use" field should be less than the "bytes_allocated" field. When it is not, the parsing of the records proceeds into the wild.
Upstream, EPSS 0.49% - CVE-2021-33286
In NTFS-3G versions < 2021.8.22, when a specially crafted unicode string is supplied in an NTFS image a heap buffer overflow can occur and allow for code execution.
Upstream, EPSS 0.49% - CVE-2021-33287
In NTFS-3G versions < 2021.8.22, when specially crafted NTFS attributes are read in the function ntfs_attr_pread_i, a heap buffer overflow can occur and allow for writing to arbitrary memory or denial of service of the application.
Upstream, EPSS 0.49% - CVE-2021-33289
In NTFS-3G versions < 2021.8.22, when a specially crafted MFT section is supplied in an NTFS image a heap buffer overflow can occur and allow for code execution.
Upstream, EPSS 0.49% - CVE-2021-35266
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS inode pathname is supplied in an NTFS image a heap buffer overflow can occur resulting in memory disclosure, denial of service and even code execution.
Upstream, EPSS 0.49% - CVE-2021-35267
NTFS-3G versions < 2021.8.22, a stack buffer overflow can occur when correcting differences in the MFT and MFTMirror allowing for code execution or escalation of privileges when setuid-root.
Upstream, EPSS 0.49% - CVE-2021-35268
In NTFS-3G versions < 2021.8.22, when a specially crafted NTFS inode is loaded in the function ntfs_inode_real_open, a heap buffer overflow can occur allowing for code execution and escalation of privileges.
Upstream, EPSS 0.49% - CVE-2021-35269
NTFS-3G versions < 2021.8.22, when a specially crafted NTFS attribute from the MFT is setup in the function ntfs_attr_setup_flag, a heap buffer overflow can occur allowing for code execution and escalation of privileges.
Upstream, EPSS 0.48% - CVE-2021-3622
A flaw was found in the hivex library. This flaw allows an attacker to input a specially crafted Windows Registry (hive) file, which would cause hivex to recursively call the _get_children() function, leading to a stack overflow. The highest threat from this vulnerability is to system availability.
Upstream, EPSS 4.79% - CVE-2021-3716
A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability.
Upstream, EPSS 0.58% - CVE-2021-3748Upstream
- CVE-2021-39251
A crafted NTFS image can cause a NULL pointer dereference in ntfs_extent_inode_open in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39252
A crafted NTFS image can cause an out-of-bounds read in ntfs_ie_lookup in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39253
A crafted NTFS image can cause an out-of-bounds read in ntfs_runlists_merge_i in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39254
A crafted NTFS image can cause an integer overflow in memmove, leading to a heap-based buffer overflow in the function ntfs_attr_record_resize, in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39255
A crafted NTFS image can trigger an out-of-bounds read, caused by an invalid attribute in ntfs_attr_find_in_attrdef, in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39256
A crafted NTFS image can cause a heap-based buffer overflow in ntfs_inode_lookup_by_name in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39257
A crafted NTFS image with an unallocated bitmap can lead to a endless recursive function call chain (starting from ntfs_attr_pwrite), causing stack consumption in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39258
A crafted NTFS image can cause out-of-bounds reads in ntfs_attr_find and ntfs_external_attr_find in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39259
A crafted NTFS image can trigger an out-of-bounds access, caused by an unsanitized attribute length in ntfs_inode_lookup_by_name, in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39260
A crafted NTFS image can cause an out-of-bounds access in ntfs_inode_sync_standard_information in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39261
A crafted NTFS image can cause a heap-based buffer overflow in ntfs_compressed_pwrite in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39262
A crafted NTFS image can cause an out-of-bounds access in ntfs_decompress in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-39263
A crafted NTFS image can trigger a heap-based buffer overflow, caused by an unsanitized attribute in ntfs_get_attribute_value, in NTFS-3G < 2021.8.22.
Upstream, EPSS 0.49% - CVE-2021-3975
A use-after-free flaw was found in libvirt. The qemuMonitorUnregister() function in qemuProcessHandleMonitorEOF is called using multiple threads without being adequately protected by a monitor lock. This flaw could be triggered by the virConnectGetAllDomainStats API when the guest is shutting down. An unprivileged client with a read-only connection could use this flaw to perform a denial of service attack by causing the libvirt daemon to crash.
Upstream, EPSS 1.22% - CVE-2021-4145
A NULL pointer dereference issue was found in the block mirror layer of QEMU in versions prior to 6.2.0. The `self` pointer is dereferenced in mirror_wait_on_conflicts() without ensuring that it's not NULL. A malicious unprivileged user within the guest could use this flaw to crash the QEMU process on the host when writing data reaches the threshold of mirroring node.
Upstream, EPSS 0.39% - CVE-2021-4158
A NULL pointer dereference issue was found in the ACPI code of QEMU. A malicious, privileged user within the guest could use this flaw to crash the QEMU process on the host, resulting in a denial of service condition.
Upstream, EPSS 0.38% - CVE-2022-0485
A flaw was found in the copying tool `nbdcopy` of libnbd. When performing multi-threaded copies using asynchronous nbd calls, nbdcopy was blindly treating the completion of an asynchronous command as successful, rather than checking the *error parameter. This could result in the silent creation of a corrupted destination image.
Upstream, EPSS 0.79% - EUVD-2021-19996Upstream
- EUVD-2021-19997Upstream
- EUVD-2021-19998Upstream
- EUVD-2021-20000Upstream
- EUVD-2021-21909Upstream
- EUVD-2021-21910Upstream
- EUVD-2021-21911Upstream
- EUVD-2021-21912Upstream
- EUVD-2021-25613Upstream
- EUVD-2021-25614Upstream
- EUVD-2021-25615Upstream
- EUVD-2021-25616Upstream
- EUVD-2021-25617Upstream
- EUVD-2021-25618Upstream
- EUVD-2021-25619Upstream
- EUVD-2021-25620Upstream
- EUVD-2021-25621Upstream
- EUVD-2021-25622Upstream
- EUVD-2021-25623Upstream
- EUVD-2021-25624Upstream
- EUVD-2021-25625Upstream
- EUVD-2021-26925Upstream
- EUVD-2021-26997Upstream
- EUVD-2021-27024Upstream
- EUVD-2021-27180Upstream
- EUVD-2021-34014Upstream
- EUVD-2021-34026Upstream
- EUVD-2021-7642Upstream
- EUVD-2022-15622Upstream
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