CVE-2022-33743
First published: Mon Jul 04 2022(Updated: )
network backend may cause Linux netfront to use freed SKBs While adding logic to support XDP (eXpress Data Path), a code label was moved in a way allowing for SKBs having references (pointers) retained for further processing to nevertheless be freed.
Credit: security@xen.org security@xen.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <0:5.14.0-284.11.1.el9_2 | 0:5.14.0-284.11.1.el9_2 |
| redhat/kernel-rt | <0:5.14.0-284.11.1.rt14.296.el9_2 | 0:5.14.0-284.11.1.rt14.296.el9_2 |
| Linux Linux kernel | >=5.9<=5.18 | |
| Xen Xen | ||
| Debian Debian Linux | =11.0 | |
| redhat/Linux kernel | <5.19 | 5.19 |
| debian/linux | 5.10.218-1 5.10.221-1 6.1.94-1 6.1.99-1 6.9.12-1 6.10.3-1 | |
| ubuntu/linux | <5.15.0-48.54 | 5.15.0-48.54 |
| ubuntu/linux | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-aws | <5.15.0-1020.24 | 5.15.0-1020.24 |
| ubuntu/linux-aws | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-aws-5.0 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-aws-5.11 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-aws-5.13 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-aws-5.15 | <5.15.0-1020.24~20.04.1 | 5.15.0-1020.24~20.04.1 |
| ubuntu/linux-aws-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-aws-5.3 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-aws-5.4 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-aws-5.8 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-aws-6.5 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-aws-fips | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-aws-hwe | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure | <5.15.0-1020.25 | 5.15.0-1020.25 |
| ubuntu/linux-azure | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-4.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-5.11 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-5.13 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-5.15 | <5.15.0-1020.25~20.04.1 | 5.15.0-1020.25~20.04.1 |
| ubuntu/linux-azure-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-5.3 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-5.4 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-6.2 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-6.5 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-edge | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-fde | <5.15.0-1024.30.1 | 5.15.0-1024.30.1 |
| ubuntu/linux-azure-fde | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-fde-5.15 | <5.15.0-1020.25~20.04.1.1 | 5.15.0-1020.25~20.04.1.1 |
| ubuntu/linux-azure-fde-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-fde-6.2 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-azure-fips | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-bluefield | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-dell300x | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-fips | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gcp | <5.15.0-1018.24 | 5.15.0-1018.24 |
| ubuntu/linux-gcp | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gcp-4.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gcp-5.11 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gcp-5.13 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gcp-5.15 | <5.15.0-1018.24~20.04.1 | 5.15.0-1018.24~20.04.1 |
| ubuntu/linux-gcp-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gcp-5.3 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gcp-5.8 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gcp-6.5 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gcp-fips | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gke | <5.15.0-1016.19 | 5.15.0-1016.19 |
| ubuntu/linux-gke | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gke-4.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gke-5.0 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gke-5.15 | <5.15.0-1016.19~20.04.1 | 5.15.0-1016.19~20.04.1 |
| ubuntu/linux-gke-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gke-5.3 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gke-5.4 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gkeop | <5.15.0-1003.5 | 5.15.0-1003.5 |
| ubuntu/linux-gkeop | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gkeop-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-gkeop-5.4 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-hwe | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-hwe-5.11 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-hwe-5.13 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-hwe-5.15 | <5.15.0-48.54~20.04.1 | 5.15.0-48.54~20.04.1 |
| ubuntu/linux-hwe-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-hwe-5.4 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-hwe-5.8 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-hwe-6.5 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-hwe-edge | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-ibm | <5.15.0-1015.17 | 5.15.0-1015.17 |
| ubuntu/linux-ibm | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-ibm-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-ibm-5.4 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-intel | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-intel-5.13 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-intel-iotg | <5.15.0-1016.21 | 5.15.0-1016.21 |
| ubuntu/linux-intel-iotg | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-intel-iotg-5.15 | <5.15.0-1016.21~20.04.1 | 5.15.0-1016.21~20.04.1 |
| ubuntu/linux-intel-iotg-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-iot | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-kvm | <5.15.0-1018.22 | 5.15.0-1018.22 |
| ubuntu/linux-kvm | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-laptop | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-lowlatency | <5.15.0-48.54 | 5.15.0-48.54 |
| ubuntu/linux-lowlatency | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.15.0-48.54~20.04.1 | 5.15.0-48.54~20.04.1 |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-lowlatency-hwe-6.5 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-lts-xenial | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-nvidia | <5.15.0-1007.7 | 5.15.0-1007.7 |
| ubuntu/linux-nvidia | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-nvidia-6.2 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-nvidia-6.5 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-nvidia-6.8 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-nvidia-lowlatency | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oem | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oem-5.10 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oem-5.13 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oem-5.14 | <5.14.0-1055.62 | 5.14.0-1055.62 |
| ubuntu/linux-oem-5.17 | <5.17.0-1024.25 | 5.17.0-1024.25 |
| ubuntu/linux-oem-5.17 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oem-5.6 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oem-6.0 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oem-6.1 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oem-6.5 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oem-6.8 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oem-osp1 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oracle | <5.15.0-1018.23 | 5.15.0-1018.23 |
| ubuntu/linux-oracle | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oracle-5.0 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oracle-5.11 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oracle-5.13 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oracle-5.15 | <5.15.0-1018.23~20.04.1 | 5.15.0-1018.23~20.04.1 |
| ubuntu/linux-oracle-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oracle-5.3 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-oracle-6.5 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-raspi | <5.15.0-1015.17 | 5.15.0-1015.17 |
| ubuntu/linux-raspi | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-raspi-5.4 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-raspi2 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-raspi2-5.3 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-riscv | <5.15.0-1019.22 | 5.15.0-1019.22 |
| ubuntu/linux-riscv | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-riscv-5.11 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-riscv-5.15 | <5.15.0-1019.22~20.04.1 | 5.15.0-1019.22~20.04.1 |
| ubuntu/linux-riscv-5.15 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-riscv-5.8 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-riscv-6.5 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-snapdragon | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-starfive | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-starfive-6.5 | <5.19~<5.15.53 | 5.19~ 5.15.53 |
| ubuntu/linux-xilinx-zynqmp | <5.19~<5.15.53 | 5.19~ 5.15.53 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-33743 https://nvd.nist.gov/vuln/detail/CVE-2022-33743 https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/net/xen-netfront.c?h=v5.19-rc7&id=f63c2c2032c2e3caad9add3b82cc6e91c376fd26 https://www.openwall.com/lists/oss-security/2022/07/05/5
- https://bugzilla.redhat.com/show_bug.cgi?id=2107924
- https://access.redhat.com/errata/RHSA-2023:2458
- https://access.redhat.com/errata/RHSA-2023:2148
- https://access.redhat.com/security/cve/cve-2022-33743
- http://www.openwall.com/lists/oss-security/2022/07/05/5
- http://xenbits.xen.org/xsa/advisory-405.html
- https://www.debian.org/security/2022/dsa-5191
- https://xenbits.xenproject.org/xsa/advisory-405.txt
- https://launchpad.net/bugs/cve/CVE-2022-33743
- https://www.openwall.com/lists/oss-security/2022/07/05/5
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/net/xen-netfront.c?h=v5.19-rc7&id=f63c2c2032c2e3caad9add3b82cc6e91c376fd26
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2108189
- https://xenbits.xen.org/xsa/advisory-405.html
- https://ubuntu.com/security/notices/USN-5623-1
- https://ubuntu.com/security/notices/USN-5624-1
- https://ubuntu.com/security/notices/USN-5633-1
- https://ubuntu.com/security/notices/USN-5635-1
- https://ubuntu.com/security/notices/USN-5640-1
- https://ubuntu.com/security/notices/USN-5644-1
- https://ubuntu.com/security/notices/USN-5648-1
- https://ubuntu.com/security/notices/USN-5655-1
- https://ubuntu.com/security/notices/USN-5683-1
- https://ubuntu.com/security/notices/USN-5773-1
- https://ubuntu.com/security/notices/USN-5789-1
- https://www.cve.org/CVERecord?id=CVE-2022-33743
- https://nvd.nist.gov/vuln/detail/CVE-2022-33743
- https://security-tracker.debian.org/tracker/CVE-2022-33743
- https://git.kernel.org/linus/6c5aa6fc4defc2a0977a2c59e4710d50fa1e834c
- https://git.kernel.org/linus/f63c2c2032c2e3caad9add3b82cc6e91c376fd26
- https://xenbits.xen.org/xsa/xsa405-linux.patch
- https://ubuntu.com/security/CVE-2022-33743
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- collector/nvd-index
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- agent/author
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2022-33743
- agent/software-canonical-lookup
- agent/severity
- agent/weakness
- agent/remedy
- agent/description
- collector/nvd-cve
- source/NVD
- agent/references
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/tags
- agent/event
- collector/security-tracker-debian
- source/Debian
- collector/usn-cve
- source/Ubuntu
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/5.9
- version/linux linux kernel/5.18
- vendor/xen
- canonical/xen xen
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/11.0
- package-manager/debian
- package-manager/ubuntu