Vulnerability · Published Sep 7, 2021 · Assigned by mitre

CVE-2021-39255

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 37% 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 63.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

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.

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-2021-39255
Debian:13ntfs-3g1:2021.8.22-2DEBIAN-CVE-2021-39255
Debian:14ntfs-3g1:2021.8.22-2DEBIAN-CVE-2021-39255
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-2021-39255

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