01 Record
CVE-2023-3812
Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags
HighPUBLISHEDCNA: redhat
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
02 Description
Kernel: tun: bugs for oversize packet when napi frags enabled in tun_napi_alloc_frags
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.34% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 27.6% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-07-24 15:19Z3 YR AGO
- Last updated
- 2026-02-26 20:27Z8 MO AGO
- Reserved
- 2023-07-20
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- Data version
- 5.2
- Document digest
- d66fc4bb0ecc6a13f915aca9404e96c349c4d73dbccc155a1c958ecc707886a8
05 Affected products
VendorProductVersionsPlatforms
06 References
- access.redhat.comRHSA-2023:6799https://access.redhat.com/errata/RHSA-2023:6799
- access.redhat.comRHSA-2023:6813https://access.redhat.com/errata/RHSA-2023:6813
- access.redhat.comRHSA-2023:7370https://access.redhat.com/errata/RHSA-2023:7370
- access.redhat.comRHSA-2023:7379https://access.redhat.com/errata/RHSA-2023:7379
- access.redhat.comRHSA-2023:7382https://access.redhat.com/errata/RHSA-2023:7382
- access.redhat.comRHSA-2023:7389https://access.redhat.com/errata/RHSA-2023:7389
- access.redhat.comRHSA-2023:7411https://access.redhat.com/errata/RHSA-2023:7411
- access.redhat.comRHSA-2023:7418https://access.redhat.com/errata/RHSA-2023:7418
- access.redhat.comRHSA-2023:7548https://access.redhat.com/errata/RHSA-2023:7548
- access.redhat.comRHSA-2023:7549https://access.redhat.com/errata/RHSA-2023:7549
- access.redhat.comRHSA-2023:7554https://access.redhat.com/errata/RHSA-2023:7554
- access.redhat.comRHSA-2024:0340https://access.redhat.com/errata/RHSA-2024:0340
- access.redhat.comRHSA-2024:0378https://access.redhat.com/errata/RHSA-2024:0378
- access.redhat.comRHSA-2024:0412https://access.redhat.com/errata/RHSA-2024:0412
- access.redhat.comRHSA-2024:0461https://access.redhat.com/errata/RHSA-2024:0461
- access.redhat.comRHSA-2024:0554https://access.redhat.com/errata/RHSA-2024:0554
- access.redhat.comRHSA-2024:0562https://access.redhat.com/errata/RHSA-2024:0562
- access.redhat.comRHSA-2024:0563https://access.redhat.com/errata/RHSA-2024:0563
- access.redhat.comRHSA-2024:0575https://access.redhat.com/errata/RHSA-2024:0575
- access.redhat.comRHSA-2024:0593https://access.redhat.com/errata/RHSA-2024:0593
- access.redhat.comRHSA-2024:1961https://access.redhat.com/errata/RHSA-2024:1961
- access.redhat.comRHSA-2024:2006https://access.redhat.com/errata/RHSA-2024:2006
- access.redhat.comRHSA-2024:2008https://access.redhat.com/errata/RHSA-2024:2008
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2023-3812
- bugzilla.redhat.comRHBZ#2224048https://bugzilla.redhat.com/show_bug.cgi?id=2224048
- git.kernel.orghttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=363a5328f4b0
07 Fixed in
AlmaLinux 8
- bpftool Fixed in 4.18.0-513.9.1.el8_9
- kernel Fixed in 4.18.0-513.9.1.el8_9
- kernel-abi-stablelists Fixed in 4.18.0-513.9.1.el8_9
- kernel-core Fixed in 4.18.0-513.9.1.el8_9
- kernel-cross-headers Fixed in 4.18.0-513.9.1.el8_9
- kernel-debug Fixed in 4.18.0-513.9.1.el8_9
- kernel-debug-core Fixed in 4.18.0-513.9.1.el8_9
- kernel-debug-devel Fixed in 4.18.0-513.9.1.el8_9
- kernel-debug-modules Fixed in 4.18.0-513.9.1.el8_9
- kernel-debug-modules-extra Fixed in 4.18.0-513.9.1.el8_9
- kernel-devel Fixed in 4.18.0-513.9.1.el8_9
- kernel-doc Fixed in 4.18.0-513.9.1.el8_9
- kernel-modules Fixed in 4.18.0-513.9.1.el8_9
- kernel-modules-extra Fixed in 4.18.0-513.9.1.el8_9
- kernel-tools Fixed in 4.18.0-513.9.1.el8_9
- kernel-tools-libs Fixed in 4.18.0-513.9.1.el8_9
- kernel-tools-libs-devel Fixed in 4.18.0-513.9.1.el8_9
- kernel-zfcpdump Fixed in 4.18.0-513.9.1.el8_9
- kernel-zfcpdump-core Fixed in 4.18.0-513.9.1.el8_9
- kernel-zfcpdump-devel Fixed in 4.18.0-513.9.1.el8_9
- kernel-zfcpdump-modules Fixed in 4.18.0-513.9.1.el8_9
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-513.9.1.el8_9
- perf Fixed in 4.18.0-513.9.1.el8_9
- python3-perf Fixed in 4.18.0-513.9.1.el8_9
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- bpftool Fixed in 4.18.0-513.9.1.el8_9
- kernel Fixed in 4.18.0-513.9.1.el8_9
- kernel-abi-stablelists Fixed in 4.18.0-513.9.1.el8_9
- kernel-core Fixed in 4.18.0-513.9.1.el8_9
- kernel-cross-headers Fixed in 4.18.0-513.9.1.el8_9
- kernel-debug Fixed in 4.18.0-513.9.1.el8_9
- kernel-debug-core Fixed in 4.18.0-513.9.1.el8_9
- kernel-debug-devel Fixed in 4.18.0-513.9.1.el8_9
- kernel-debug-modules Fixed in 4.18.0-513.9.1.el8_9
- kernel-debug-modules-extra Fixed in 4.18.0-513.9.1.el8_9
- kernel-devel Fixed in 4.18.0-513.9.1.el8_9
- kernel-doc Fixed in 4.18.0-513.9.1.el8_9
- kernel-modules Fixed in 4.18.0-513.9.1.el8_9
- kernel-modules-extra Fixed in 4.18.0-513.9.1.el8_9
- kernel-tools Fixed in 4.18.0-513.9.1.el8_9
- kernel-tools-libs Fixed in 4.18.0-513.9.1.el8_9
- kernel-tools-libs-devel Fixed in 4.18.0-513.9.1.el8_9
- kernel-zfcpdump Fixed in 4.18.0-513.9.1.el8_9
- kernel-zfcpdump-core Fixed in 4.18.0-513.9.1.el8_9
- kernel-zfcpdump-devel Fixed in 4.18.0-513.9.1.el8_9
- kernel-zfcpdump-modules Fixed in 4.18.0-513.9.1.el8_9
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-513.9.1.el8_9
- perf Fixed in 4.18.0-513.9.1.el8_9
- python3-perf Fixed in 4.18.0-513.9.1.el8_9
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- linux Fixed in 6.0.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 6.0.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 6.0.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux-hwe-edge No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux Fixed in 4.15.0-206.217
- linux-aws Fixed in 4.15.0-1151.164
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-aws-5.4 Fixed in 5.4.0-1096.104~18.04.1
- linux-azure No fix yet
- linux-azure-4.15 Fixed in 4.15.0-1162.177
- linux-azure-5.3 No fix yet
- linux-azure-5.4 Fixed in 5.4.0-1103.109~18.04.1
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-4.15 Fixed in 4.15.0-1146.162
- linux-gcp-5.3 No fix yet
- linux-gcp-5.4 Fixed in 5.4.0-1100.109~18.04.1
- linux-gke-4.15 No fix yet
- linux-gke-5.4 No fix yet
- linux-gkeop-5.4 No fix yet
- linux-hwe No fix yet
- linux-hwe-5.4 Fixed in 5.4.0-139.156~18.04.1
- linux-hwe-edge No fix yet
- linux-ibm-5.4 Fixed in 5.4.0-1044.49~18.04.1
- linux-kvm Fixed in 4.15.0-1136.141
- linux-oem No fix yet
- linux-oracle Fixed in 4.15.0-1115.126
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
- linux-oracle-5.4 Fixed in 5.4.0-1093.102~18.04.1
- linux-raspi-5.4 Fixed in 5.4.0-1080.91~18.04.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux Fixed in 5.4.0-139.156
- linux-aws Fixed in 5.4.0-1096.104
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.15 Fixed in 5.15.0-1030.34~20.04.1
- linux-aws-5.8 No fix yet
- linux-azure Fixed in 5.4.0-1103.109
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.15 Fixed in 5.15.0-1033.40~20.04.1
- linux-azure-5.8 No fix yet
- linux-bluefield Fixed in 5.4.0-1058.64
- linux-gcp Fixed in 5.4.0-1100.109
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.15 Fixed in 5.15.0-1029.36~20.04.1
- linux-gcp-5.8 No fix yet
- linux-gke No fix yet
- linux-gke-5.15 No fix yet
- linux-gkeop Fixed in 5.4.0-1064.68
- linux-gkeop-5.15 Fixed in 5.15.0-1015.19~20.04.1
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 No fix yet
- linux-hwe-5.15 Fixed in 5.15.0-60.66~20.04.1
- linux-hwe-5.8 No fix yet
- linux-ibm Fixed in 5.4.0-1044.49
- linux-intel-5.13 No fix yet
- linux-intel-iotg-5.15 Fixed in 5.15.0-1025.30~20.04.1
- linux-iot Fixed in 5.4.0-1012.14
- linux-kvm Fixed in 5.4.0-1086.92
- linux-lowlatency-hwe-5.15 Fixed in 5.15.0-60.66~20.04.1
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.14 No fix yet
- linux-oem-5.6 No fix yet
- linux-oracle Fixed in 5.4.0-1093.102
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 No fix yet
- linux-oracle-5.15 Fixed in 5.15.0-1029.35~20.04.1
- linux-oracle-5.8 No fix yet
7 further packages in Ubuntu 20.04 LTS not shown (first 40 listed).
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux Fixed in 5.15.0-60.66
- linux-aws Fixed in 5.15.0-1030.34
- linux-aws-5.19 No fix yet
- linux-azure Fixed in 5.15.0-1033.40
- linux-azure-5.19 No fix yet
- linux-azure-fde Fixed in 5.15.0-1033.40.1
- linux-azure-fde-5.19 No fix yet
- linux-gcp Fixed in 5.15.0-1029.36
- linux-gcp-5.19 No fix yet
- linux-gke Fixed in 5.15.0-1027.32
- linux-gkeop Fixed in 5.15.0-1015.19
- linux-hwe-5.19 Fixed in 5.19.0-32.33~22.04.1
- linux-ibm Fixed in 5.15.0-1025.28
- linux-intel-iot-realtime No fix yet
- linux-intel-iotg Fixed in 5.15.0-1025.30
- linux-kvm Fixed in 5.15.0-1028.33
- linux-lowlatency Fixed in 5.15.0-60.66
- linux-nvidia Fixed in 5.15.0-1017.17
- linux-oem-5.17 No fix yet
- linux-oem-6.0 Fixed in 6.0.0-1008.8
- linux-oracle Fixed in 5.15.0-1029.35
- linux-raspi Fixed in 5.15.0-1024.26
- linux-realtime No fix yet
- linux-riscv No fix yet
- linux-riscv-5.19 No fix yet
- linux-starfive-5.19 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Nvidia-BlueField 22.04 LTS
- linux-bluefield Fixed in 5.15.0-1014.16
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- linux-azure Fixed in 4.15.0-1162.177~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- linux-aws-hwe Fixed in 4.15.0-1151.164~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1162.177~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp Fixed in 4.15.0-1146.162~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe Fixed in 4.15.0-206.217~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle Fixed in 4.15.0-1115.126~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 18.04 LTS
- linux-aws-fips Fixed in 4.15.0-2090.96Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2071.77Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1108.119Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 4.15.0-2055.60Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 20.04 LTS
- linux-aws-fips Fixed in 5.4.0-1096.104+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1103.109+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 5.4.0-1072.81Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1100.109+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 18.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 20.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.