Vulnerability · Published Sep 7, 2021 · Assigned by mitre

CVE-2021-33285

Medium 6.7

In plain English

A medium-severity improper input validation in the SLOF package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.7Medium
Exploit odds (30 days)0.4%top 63.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8SLOF20210217-1.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8hivex1.3.18-23.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8hivex-devel1.3.18-23.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libguestfs1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-appliance1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-bash-completion1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-devel1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-gfs21:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-gobject1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-gobject-devel1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-inspect-icons1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-java1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-java-devel1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-javadoc1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-man-pages-ja1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-man-pages-uk1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-rescue1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-rsync1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-tools1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-tools-c1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libguestfs-winsupport8.6-1.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libguestfs-xfs1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8libiscsi1.18.0-8.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libiscsi-devel1.18.0-8.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libiscsi-utils1.18.0-8.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libnbd1.6.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libnbd-bash-completion1.6.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libnbd-devel1.6.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libtpms0.9.1-0.20211126git1ff6fe1f43.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libtpms-devel0.9.1-0.20211126git1ff6fe1f43.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-client8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-config-network8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-config-nwfilter8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-interface8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-network8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-nodedev8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-nwfilter8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-qemu8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-secret8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-storage8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-storage-core8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-storage-disk8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-storage-gluster8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-storage-iscsi8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-storage-iscsi-direct8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-storage-logical8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-storage-mpath8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-storage-rbd8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-driver-storage-scsi8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-daemon-kvm8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-dbus1.3.0-2.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-devel8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-docs8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-libs8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-lock-sanlock8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-nss8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8libvirt-wireshark8.0.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8lua-guestfs1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8nbdfuse1.6.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-bash-completion1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-basic-filters1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-basic-plugins1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-curl-plugin1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-devel1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-example-plugins1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-gzip-filter1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-gzip-plugin1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-linuxdisk-plugin1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-nbd-plugin1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-python-plugin1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-server1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-ssh-plugin1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-tar-filter1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-tar-plugin1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-tmpdisk-plugin1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-vddk-plugin1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8nbdkit-xz-filter1.24.0-4.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8netcf0.2.8-12.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8netcf-devel0.2.8-12.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8netcf-libs0.2.8-12.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8ocaml-hivex1.3.18-23.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8ocaml-hivex-devel1.3.18-23.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8ocaml-libguestfs1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8ocaml-libguestfs-devel1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8ocaml-libnbd1.6.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8ocaml-libnbd-devel1.6.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8perl-Sys-Guestfs1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8perl-Sys-Virt8.0.0-1.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8perl-hivex1.3.18-23.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8python3-hivex1.3.18-23.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8python3-libguestfs1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8python3-libnbd1.6.0-5.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8python3-libvirt8.0.0-1.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-guest-agent15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-img15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-block-curl15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-block-gluster15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-block-iscsi15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-block-rbd15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-block-ssh15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-common15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-core15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-docs15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-hw-usbredir15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-tests15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-ui-opengl15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8qemu-kvm-ui-spice15:6.2.0-11.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8ruby-hivex1.3.18-23.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8ruby-libguestfs1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8seabios1.15.0-2.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8seabios-bin1.15.0-2.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8seavgabios-bin1.15.0-2.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8sgabios1:0.20170427git-3.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8sgabios-bin1:0.20170427git-3.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8supermin5.2.1-1.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8supermin-devel5.2.1-1.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8swtpm0.7.0-1.20211109gitb79fd91.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8swtpm-devel0.7.0-1.20211109gitb79fd91.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8swtpm-libs0.7.0-1.20211109gitb79fd91.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8swtpm-tools0.7.0-1.20211109gitb79fd91.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8swtpm-tools-pkcs110.7.0-1.20211109gitb79fd91.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8virt-dib1:1.44.0-5.module_el8.6.0+2880+7d9e3703.almaALSA-2022:1759
AlmaLinux:8virt-v2v1:1.42.0-18.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8virt-v2v-bash-completion1:1.42.0-18.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8virt-v2v-man-pages-ja1:1.42.0-18.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
AlmaLinux:8virt-v2v-man-pages-uk1:1.42.0-18.module_el8.6.0+2880+7d9e3703ALSA-2022:1759
Debian:12ntfs-3g1:2021.8.22-2DEBIAN-CVE-2021-33285
Debian:13ntfs-3g1:2021.8.22-2DEBIAN-CVE-2021-33285
Debian:14ntfs-3g1:2021.8.22-2DEBIAN-CVE-2021-33285
Rocky Linux:8hivex0:1.3.18-23.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8hivex0:1.3.18-23.module+el8.7.0+1084+97b81f61RLSA-2022:1759
Rocky Linux:8libguestfs1:1.44.0-5.module+el8.6.0+1052+ff61d164.rockyRLSA-2022:1759
Rocky Linux:8libguestfs-winsupport0:8.6-1.module+el8.7.0+1084+97b81f61RLSA-2022:1759
Rocky Linux:8libguestfs-winsupport0:8.6-1.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8libiscsi0:1.18.0-8.module+el8.7.0+1084+97b81f61RLSA-2022:1759
Rocky Linux:8libiscsi0:1.18.0-8.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8libiscsi0:1.18.0-8.module+el8.4.0+534+4680a14eRLSA-2022:1759
Rocky Linux:8libnbd0:1.6.0-5.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8libnbd0:1.6.0-5.module+el8.7.0+1084+97b81f61RLSA-2022:1759
Rocky Linux:8libtpms0:0.9.1-0.20211126git1ff6fe1f43.module+el8.6.0+1052+ff61d164RLSA-2022:1759
Rocky Linux:8libvirt0:8.0.0-5.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8libvirt-dbus0:1.3.0-2.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8libvirt-dbus0:1.3.0-2.module+el8.7.0+1084+97b81f61RLSA-2022:1759
Rocky Linux:8libvirt-dbus0:1.3.0-2.module+el8.4.0+534+4680a14eRLSA-2022:1759
Rocky Linux:8libvirt-python0:8.0.0-1.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8nbdkit0:1.24.0-4.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8netcf0:0.2.8-12.module+el8.4.0+534+4680a14eRLSA-2022:1759
Rocky Linux:8netcf0:0.2.8-12.module+el8.7.0+1084+97b81f61RLSA-2022:1759
Rocky Linux:8netcf0:0.2.8-12.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8perl-Sys-Virt0:8.0.0-1.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8perl-Sys-Virt0:8.0.0-1.module+el8.7.0+1084+97b81f61RLSA-2022:1759
Rocky Linux:8qemu-kvm5:6.2.0-11.module+el8.6.0+1000+18e3b59f.5RLSA-2022:1759
Rocky Linux:8seabios0:1.15.0-2.module+el8.6.0+1052+ff61d164RLSA-2022:1759
Rocky Linux:8sgabios1:0.20170427git-3.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8sgabios1:0.20170427git-3.module+el8.7.0+1084+97b81f61RLSA-2022:1759
Rocky Linux:8sgabios1:0.20170427git-3.module+el8.4.0+534+4680a14eRLSA-2022:1759
Rocky Linux:8supermin0:5.2.1-1.module+el8.6.0+1052+ff61d164RLSA-2022:1759
Rocky Linux:8swtpm0:0.7.0-1.20211109gitb79fd91.module+el8.6.0+847+b490afddRLSA-2022:1759
Rocky Linux:8virt-v2v1:1.42.0-18.module+el8.6.0+847+b490afddRLSA-2022:1759
Ubuntu:22.04:LTSntfs-3g1:2017.3.23AR.3-3ubuntu5UBUNTU-CVE-2021-33285

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-20 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References