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RHSA-2021:3704
No affected components available
Red Hat Security Advisory: virt:8.2 and virt-devel:8.2 security update
The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability. The vulnerability can affect other systems as well, not just the initial system. 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-2021-33285
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-2021-3631
A flaw was found in libvirt while it generates SELinux MCS category pairs for VMs' dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breaking out of sVirt confinement. The highest threat from this vulnerability is to confidentiality and integrity.
Upstream, EPSS 0.49% - CVE-2021-3667
An improper locking issue was found in the virStoragePoolLookupByTargetPath API of libvirt. It occurs in the storagePoolLookupByTargetPath function where a locked virStoragePoolObj object is not properly released on ACL permission failure. Clients connecting to the read-write socket with limited ACL permissions could use this flaw to acquire the lock and prevent other users from accessing storage pool/volume APIs, resulting in a denial of service condition. The highest threat from this vulnerability is to system availability.
Upstream, EPSS 1.37% - CVE-2021-3682
A flaw was found in the USB redirector device emulation of QEMU in versions prior to 6.1.0-rc2. It occurs when dropping packets during a bulk transfer from a SPICE client due to the packet queue being full. A malicious SPICE client could use this flaw to make QEMU call free() with faked heap chunk metadata, resulting in a crash of QEMU or potential code execution with the privileges of the QEMU process on the host.
Upstream, EPSS 2.90% - 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% - 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-2021-26933Upstream
- EUVD-2021-26959Upstream
- EUVD-2021-26972Upstream
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