Unrated severityNVD Advisory· Published Jun 15, 2021· Updated Aug 3, 2024
CVE-2021-3595
CVE-2021-3595
Description
An invalid pointer initialization issue was found in the SLiRP networking implementation of QEMU. The flaw exists in the tftp_input() function and could occur while processing a udp packet that is smaller than the size of the 'tftp_t' structure. This issue may lead to out-of-bounds read access or indirect host memory disclosure to the guest. The highest threat from this vulnerability is to data confidentiality. This flaw affects libslirp versions prior to 4.6.0.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
148- osv-coords147 versionspkg:rpm/almalinux/hivexpkg:rpm/almalinux/hivex-develpkg:rpm/almalinux/libguestfspkg:rpm/almalinux/libguestfs-bash-completionpkg:rpm/almalinux/libguestfs-benchmarkingpkg:rpm/almalinux/libguestfs-develpkg:rpm/almalinux/libguestfs-gfs2pkg:rpm/almalinux/libguestfs-gobjectpkg:rpm/almalinux/libguestfs-gobject-develpkg:rpm/almalinux/libguestfs-inspect-iconspkg:rpm/almalinux/libguestfs-javapkg:rpm/almalinux/libguestfs-java-develpkg:rpm/almalinux/libguestfs-javadocpkg:rpm/almalinux/libguestfs-man-pages-japkg:rpm/almalinux/libguestfs-man-pages-ukpkg:rpm/almalinux/libguestfs-rescuepkg:rpm/almalinux/libguestfs-rsyncpkg:rpm/almalinux/libguestfs-toolspkg:rpm/almalinux/libguestfs-tools-cpkg:rpm/almalinux/libguestfs-winsupportpkg:rpm/almalinux/libguestfs-xfspkg:rpm/almalinux/libiscsipkg:rpm/almalinux/libiscsi-develpkg:rpm/almalinux/libiscsi-utilspkg:rpm/almalinux/libnbdpkg:rpm/almalinux/libnbd-develpkg:rpm/almalinux/libvirtpkg:rpm/almalinux/libvirt-adminpkg:rpm/almalinux/libvirt-bash-completionpkg:rpm/almalinux/libvirt-clientpkg:rpm/almalinux/libvirt-daemonpkg:rpm/almalinux/libvirt-daemon-config-networkpkg:rpm/almalinux/libvirt-daemon-config-nwfilterpkg:rpm/almalinux/libvirt-daemon-driver-interfacepkg:rpm/almalinux/libvirt-daemon-driver-networkpkg:rpm/almalinux/libvirt-daemon-driver-nodedevpkg:rpm/almalinux/libvirt-daemon-driver-nwfilterpkg:rpm/almalinux/libvirt-daemon-driver-qemupkg:rpm/almalinux/libvirt-daemon-driver-secretpkg:rpm/almalinux/libvirt-daemon-driver-storagepkg:rpm/almalinux/libvirt-daemon-driver-storage-corepkg:rpm/almalinux/libvirt-daemon-driver-storage-diskpkg:rpm/almalinux/libvirt-daemon-driver-storage-glusterpkg:rpm/almalinux/libvirt-daemon-driver-storage-iscsipkg:rpm/almalinux/libvirt-daemon-driver-storage-iscsi-directpkg:rpm/almalinux/libvirt-daemon-driver-storage-logicalpkg:rpm/almalinux/libvirt-daemon-driver-storage-mpathpkg:rpm/almalinux/libvirt-daemon-driver-storage-rbdpkg:rpm/almalinux/libvirt-daemon-driver-storage-scsipkg:rpm/almalinux/libvirt-daemon-kvmpkg:rpm/almalinux/libvirt-dbuspkg:rpm/almalinux/libvirt-develpkg:rpm/almalinux/libvirt-docspkg:rpm/almalinux/libvirt-libspkg:rpm/almalinux/libvirt-lock-sanlockpkg:rpm/almalinux/libvirt-nsspkg:rpm/almalinux/lua-guestfspkg:rpm/almalinux/nbdfusepkg:rpm/almalinux/nbdkitpkg:rpm/almalinux/nbdkit-bash-completionpkg:rpm/almalinux/nbdkit-basic-filterspkg:rpm/almalinux/nbdkit-basic-pluginspkg:rpm/almalinux/nbdkit-curl-pluginpkg:rpm/almalinux/nbdkit-develpkg:rpm/almalinux/nbdkit-example-pluginspkg:rpm/almalinux/nbdkit-gzip-pluginpkg:rpm/almalinux/nbdkit-linuxdisk-pluginpkg:rpm/almalinux/nbdkit-python-pluginpkg:rpm/almalinux/nbdkit-serverpkg:rpm/almalinux/nbdkit-ssh-pluginpkg:rpm/almalinux/nbdkit-vddk-pluginpkg:rpm/almalinux/nbdkit-xz-filterpkg:rpm/almalinux/netcfpkg:rpm/almalinux/netcf-develpkg:rpm/almalinux/netcf-libspkg:rpm/almalinux/perl-hivexpkg:rpm/almalinux/perl-Sys-Guestfspkg:rpm/almalinux/perl-Sys-Virtpkg:rpm/almalinux/python3-hivexpkg:rpm/almalinux/python3-libguestfspkg:rpm/almalinux/python3-libnbdpkg:rpm/almalinux/python3-libvirtpkg:rpm/almalinux/ruby-hivexpkg:rpm/almalinux/ruby-libguestfspkg:rpm/almalinux/seabiospkg:rpm/almalinux/seabios-binpkg:rpm/almalinux/seavgabios-binpkg:rpm/almalinux/sgabiospkg:rpm/almalinux/sgabios-binpkg:rpm/almalinux/superminpkg:rpm/almalinux/supermin-develpkg:rpm/almalinux/virt-dibpkg:rpm/almalinux/virt-v2vpkg:rpm/opensuse/libslirp&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/libslirp&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/qemu&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/qemu&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/qemu-linux-user&distro=openSUSE%20Leap%2015.2pkg:rpm/opensuse/qemu-testsuite&distro=openSUSE%20Leap%2015.2pkg:rpm/suse/libslirp&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/libslirp&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/suse/libslirp&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP3pkg:rpm/suse/libslirp&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP4pkg:rpm/suse/qemu&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/qemu&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Micro%205.0pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP2pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP2pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/qemu&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/qemu&distro=SUSE%20Manager%20Proxy%204.0pkg:rpm/suse/qemu&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.0pkg:rpm/suse/qemu&distro=SUSE%20Manager%20Server%204.0pkg:rpm/suse/qemu&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/qemu&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/qemu&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/qemu&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/xen&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-BCLpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208pkg:rpm/suse/xen&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 1.3.18-21.module_el8.5.0+2608+72063365+ 146 more
- (no CPE)range: < 1.3.18-21.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.3.18-21.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 8.2-1.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1.18.0-8.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 1.18.0-8.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 1.18.0-8.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 1.2.2-1.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.2.2-1.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.3.0-2.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-37.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1.2.2-1.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.16.2-4.module_el8.5.0+2608+72063365
- (no CPE)range: < 0.2.8-12.module_el8.5.0+2608+72063365
- (no CPE)range: < 0.2.8-12.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 0.2.8-12.module_el8.6.0+2880+7d9e3703
- (no CPE)range: < 1.3.18-21.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 6.0.0-1.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.3.18-21.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1.2.2-1.module_el8.5.0+2608+72063365
- (no CPE)range: < 6.0.0-1.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.3.18-21.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1.13.0-2.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.13.0-2.module_el8.5.0+2608+72063365
- (no CPE)range: < 1.13.0-2.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:0.20170427git-3.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:0.20170427git-3.module_el8.5.0+2608+72063365
- (no CPE)range: < 5.1.19-10.module_el8.5.0+2608+72063365
- (no CPE)range: < 5.1.19-10.module_el8.5.0+2608+72063365
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 1:1.40.2-28.module_el8.5.0+2608+72063365.alma
- (no CPE)range: < 4.3.1-150300.2.7.1
- (no CPE)range: < 4.3.1-150300.2.7.1
- (no CPE)range: < 4.2.1-lp152.9.20.1
- (no CPE)range: < 4.2.1-11.25.2
- (no CPE)range: < 4.2.1-lp152.9.20.1
- (no CPE)range: < 4.2.1-lp152.9.20.1
- (no CPE)range: < 4.3.1-150300.2.7.1
- (no CPE)range: < 4.3.1-150300.2.7.1
- (no CPE)range: < 4.3.1-150300.2.7.1
- (no CPE)range: < 4.3.1-150300.6.2
- (no CPE)range: < 2.9.1-6.53.1
- (no CPE)range: < 3.1.1.1-9.30.2
- (no CPE)range: < 3.1.1.1-9.30.2
- (no CPE)range: < 3.1.1.1-9.30.2
- (no CPE)range: < 2.11.2-9.49.1
- (no CPE)range: < 2.11.2-9.49.1
- (no CPE)range: < 4.2.1-11.25.2
- (no CPE)range: < 4.2.1-11.25.2
- (no CPE)range: < 4.2.1-11.25.2
- (no CPE)range: < 2.6.2-41.68.1
- (no CPE)range: < 2.9.1-6.53.1
- (no CPE)range: < 2.9.1-6.53.1
- (no CPE)range: < 2.11.2-5.35.1
- (no CPE)range: < 3.1.1.1-54.1
- (no CPE)range: < 3.1.1.1-9.30.2
- (no CPE)range: < 3.1.1.1-9.30.2
- (no CPE)range: < 2.11.2-9.49.1
- (no CPE)range: < 2.9.1-6.53.1
- (no CPE)range: < 2.11.2-5.35.1
- (no CPE)range: < 3.1.1.1-54.1
- (no CPE)range: < 2.11.2-9.49.1
- (no CPE)range: < 3.1.1.1-9.30.2
- (no CPE)range: < 3.1.1.1-9.30.2
- (no CPE)range: < 3.1.1.1-9.30.2
- (no CPE)range: < 3.1.1.1-9.30.2
- (no CPE)range: < 2.9.1-6.53.1
- (no CPE)range: < 2.11.2-5.35.1
- (no CPE)range: < 2.9.1-6.53.1
- (no CPE)range: < 2.11.2-5.35.1
- (no CPE)range: < 4.9.4_20-3.91.1
- (no CPE)range: < 4.4.4_50-61.67.1
- (no CPE)range: < 4.7.6_16-43.79.5
- (no CPE)range: < 4.9.4_20-3.91.1
- (no CPE)range: < 4.9.4_20-3.91.1
- (no CPE)range: < 4.11.4_20-2.60.1
- (no CPE)range: < 4.12.4_12-3.49.1
- (no CPE)range: < 4.9.4_20-3.91.1
- (no CPE)range: < 4.11.4_20-2.60.1
- (no CPE)range: < 4.12.4_12-3.49.1
- (no CPE)range: < 4.12.4_12-3.49.1
- (no CPE)range: < 4.9.4_20-3.91.1
- (no CPE)range: < 4.11.4_20-2.60.1
- (no CPE)range: < 4.9.4_20-3.91.1
- (no CPE)range: < 4.11.4_20-2.60.1
Patches
Vulnerability mechanics
References
7- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GCKWZWY64EHTOQMLVLTSZ4AA27EWRJMH/mitrevendor-advisory
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SGPQZFVJCFGDSISFXPCQTTBBD7QZLJKI/mitrevendor-advisory
- security.gentoo.org/glsa/202107-44mitrevendor-advisory
- lists.debian.org/debian-lts-announce/2021/09/msg00000.htmlmitremailing-list
- lists.debian.org/debian-lts-announce/2023/03/msg00013.htmlmitremailing-list
- bugzilla.redhat.com/show_bug.cgimitre
- security.netapp.com/advisory/ntap-20210805-0004/mitre
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