CVE-2023-35001: (Pwn2Own) Linux Kernel nftables Incorrect Pointer Scaling Local Privilege Escalation Vulnerability
First published: Wed Jul 05 2023(Updated: )
Last updated 29 November 2024
Credit: security@ubuntu.com security@ubuntu.com security@ubuntu.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | =3.13-rc1 | |
| Debian Debian Linux | =11.0 | |
| Fedoraproject Fedora | =37 | |
| Fedoraproject Fedora | =38 | |
| Linux kernel | ||
| Linux Linux kernel | >=3.13<4.14.322 | |
| Linux Linux kernel | >=4.15<=4.19.291 | |
| Linux Linux kernel | >=4.20<5.4.251 | |
| Linux Linux kernel | >=5.5<5.10.188 | |
| Linux Linux kernel | >=5.11<5.15.121 | |
| Linux Linux kernel | >=5.16<6.1.39 | |
| Linux Linux kernel | >=6.2<6.4.4 | |
| Netapp H300s | ||
| Netapp H410c | ||
| Netapp H410s | ||
| Netapp H500s | ||
| Netapp H700s | ||
| IBM QRadar Network Packet Capture | <=7.5.0 - 7.5.0 Update Package 7 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
Remedy
If not needed, disable the ability for unprivileged users to create namespaces. To do this temporarily, do: sudo sysctl -w kernel.unprivileged_userns_clone=0 To disable across reboots, do: echo kernel.unprivileged_userns_clone=0 | \ sudo tee /etc/sysctl.d/99-disable-unpriv-userns.conf
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Reference Links
- http://packetstormsecurity.com/files/173757/Kernel-Live-Patch-Security-Notice-LSN-0096-1.html
- http://packetstormsecurity.com/files/174577/Kernel-Live-Patch-Security-Notice-LSN-0097-1.html
- http://www.openwall.com/lists/oss-security/2023/07/05/3
- https://lists.debian.org/debian-lts-announce/2023/08/msg00001.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RGZC5XOANA75OJ4XARBBXYSLDKUIJI5E/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPHI46ROSSLVAV4R5LJWJYU747JGOS6D/
- https://lore.kernel.org/netfilter-devel/20230705121515.747251-1-cascardo@canonical.com/T/
- https://security.netapp.com/advisory/ntap-20230824-0007/
- https://www.debian.org/security/2023/dsa-5453
- https://www.openwall.com/lists/oss-security/2023/07/05/3
- https://www.zerodayinitiative.com/advisories/ZDI-23-900/
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://launchpad.net/bugs/cve/CVE-2023-35001
- https://exchange.xforce.ibmcloud.com/vulnerabilities/259747
- https://www.ibm.com/support/pages/node/7160961 (Advisory)
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2221759
- https://access.redhat.com/errata/RHSA-2023:4961
- https://access.redhat.com/errata/RHSA-2023:4962
- https://access.redhat.com/errata/RHSA-2023:4967
- https://access.redhat.com/errata/RHSA-2023:5091
- https://access.redhat.com/errata/RHSA-2023:5093
- https://access.redhat.com/errata/RHSA-2023:5069
- https://access.redhat.com/errata/RHSA-2023:5221
- https://access.redhat.com/errata/RHSA-2023:5238
- https://access.redhat.com/errata/RHSA-2023:5235
- https://access.redhat.com/errata/RHSA-2023:5255
- https://access.redhat.com/errata/RHSA-2023:5244
- https://access.redhat.com/errata/RHSA-2023:5414
- https://access.redhat.com/errata/RHSA-2023:5548
- https://access.redhat.com/errata/RHSA-2023:5575
- https://access.redhat.com/errata/RHSA-2023:5574
- https://access.redhat.com/errata/RHSA-2023:5603
- https://access.redhat.com/errata/RHSA-2023:5604
- https://access.redhat.com/errata/RHSA-2023:5621
- https://access.redhat.com/errata/RHSA-2023:5622
- https://access.redhat.com/errata/RHSA-2023:5627
- https://access.redhat.com/errata/RHSA-2023:7243
- https://access.redhat.com/errata/RHSA-2024:1268
- https://access.redhat.com/errata/RHSA-2024:1269
- https://access.redhat.com/errata/RHSA-2024:1278
- https://bugzilla.redhat.com/show_bug.cgi?id=2220892
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-35001
- https://nvd.nist.gov/vuln/detail/CVE-2023-35001
- https://security-tracker.debian.org/tracker/CVE-2023-35001
- https://ubuntu.com/security/CVE-2023-35001
- collector/nvd-index
- agent/type
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- alias/ZDI-23-900
- alias/ZDI-CAN-20721
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- source/Launchpad
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- source/MITRE
- agent/severity
- collector/ibm-support
- source/IBM
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- source/Red Hat
- collector/usn-cve
- source/Ubuntu
- collector/nvd-cve
- collector/security-tracker-debian
- source/Debian
- agent/remedy
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- version/linux linux kernel/3.13-rc1
- vendor/debian
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- version/debian debian linux/11.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/37
- version/fedoraproject fedora/38
- canonical/linux kernel
- version/linux linux kernel/3.13
- version/linux linux kernel/4.15
- version/linux linux kernel/4.19.291
- version/linux linux kernel/4.20
- version/linux linux kernel/5.5
- version/linux linux kernel/5.11
- version/linux linux kernel/5.16
- version/linux linux kernel/6.2
- vendor/netapp
- canonical/netapp h300s
- canonical/netapp h410c
- canonical/netapp h410s
- canonical/netapp h500s
- canonical/netapp h700s
- vendor/ibm
- canonical/ibm qradar network packet capture
- version/ibm qradar network packet capture/7.5.0 - 7.5.0 update package 7
- package-manager/debian