Vulnerability · Published Jul 21, 2023 · Assigned by Google
CVE-2023-3611Out-of-bounds write in Linux kernel's net/sched: sch_qfq component
High 7.8
In plain English
A high-severity out-of-bounds write in Kernel from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.3%top 78.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
An out-of-bounds write vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. The qfq_change_agg() function in net/sched/sch_qfq.c allows an out-of-bounds write because lmax is updated according to packet sizes without bounds checks. We recommend upgrading past commit 3e337087c3b5805fe0b8a46ba622a962880b5d64.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bpftool | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-abi-stablelists | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-cross-headers | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-debug-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-doc | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-headers | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools-libs | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-tools-libs-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-core | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-devel | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-modules | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | kernel-zfcpdump-modules-extra | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | perf | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| AlmaLinux:8 | python3-perf | 4.18.0-513.5.1.el8_9 | ALSA-2023:7077 |
| Debian:12 | linux | 6.1.52-1 | DEBIAN-CVE-2023-3611 |
| Debian:12 | linux | 6.1.52-1 | DSA-5492-1 |
| Debian:13 | linux | 6.4.4-2 | DEBIAN-CVE-2023-3611 |
| Debian:14 | linux | 6.4.4-2 | DEBIAN-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux | 5.15.0-82.91 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux | 5.15.0-82.91 | USN-6315-1 |
| Ubuntu:22.04:LTS | linux-allwinner-5.19 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1043.48 | USN-6315-1 |
| Ubuntu:22.04:LTS | linux-aws | 5.15.0-1043.48 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-aws-5.19 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1010.10~22.04.1 | USN-6318-1 |
| Ubuntu:22.04:LTS | linux-aws-6.2 | 6.2.0-1010.10~22.04.1 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1045.52 | USN-6332-1 |
| Ubuntu:22.04:LTS | linux-azure | 5.15.0-1045.52 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-azure-5.19 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-azure-6.2 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1045.52.1 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-azure-fde | 5.15.0-1045.52.1 | USN-6332-1 |
| Ubuntu:22.04:LTS | linux-azure-fde-5.19 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-azure-fde-6.2 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1040.48 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-gcp | 5.15.0-1040.48 | USN-6315-1 |
| Ubuntu:22.04:LTS | linux-gcp-5.19 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-gcp-6.2 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1040.45 | USN-6315-1 |
| Ubuntu:22.04:LTS | linux-gke | 5.15.0-1040.45 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1026.31 | USN-6315-1 |
| Ubuntu:22.04:LTS | linux-gkeop | 5.15.0-1026.31 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | 6.2.0-31.31~22.04.1 | USN-6318-1 |
| Ubuntu:22.04:LTS | linux-hwe-6.2 | 6.2.0-31.31~22.04.1 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1036.39 | USN-6315-1 |
| Ubuntu:22.04:LTS | linux-ibm | 5.15.0-1036.39 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1038.43 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-intel-iotg | 5.15.0-1038.43 | USN-6325-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1040.45 | USN-6315-1 |
| Ubuntu:22.04:LTS | linux-kvm | 5.15.0-1040.45 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-82.91 | USN-6315-1 |
| Ubuntu:22.04:LTS | linux-lowlatency | 5.15.0-82.91 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-5.19 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | 6.2.0-1011.11~22.04.1 | USN-6318-1 |
| Ubuntu:22.04:LTS | linux-lowlatency-hwe-6.2 | 6.2.0-1011.11~22.04.1 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1031.31 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-nvidia | 5.15.0-1031.31 | USN-6315-1 |
| Ubuntu:22.04:LTS | linux-nvidia-6.2 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra | 5.15.0-1017.17 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-nvidia-tegra-igx | 5.15.0-1004.4 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-oem-5.17 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | 6.0.0-1021.21 | USN-6385-1 |
| Ubuntu:22.04:LTS | linux-oem-6.0 | 6.0.0-1021.21 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1019.19 | USN-6285-1 |
| Ubuntu:22.04:LTS | linux-oem-6.1 | 6.1.0-1019.19 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1041.47 | USN-6315-1 |
| Ubuntu:22.04:LTS | linux-oracle | 5.15.0-1041.47 | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1036.39 | USN-6348-1 |
| Ubuntu:22.04:LTS | linux-raspi | 5.15.0-1036.39 | UBUNTU-CVE-2023-3611 |
| Ubuntu:24.04:LTS | linux-raspi-realtime | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-realtime | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-riscv | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-riscv-5.19 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-starfive-5.19 | no fix listed | UBUNTU-CVE-2023-3611 |
| Ubuntu:22.04:LTS | linux-xilinx-zynqmp | 5.15.0-1025.29 | UBUNTU-CVE-2023-3611 |
Affected products (as reported)
Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3e337087c3b5805fe0b8a46ba622a962880b5d64 patch
- https://kernel.dance/3e337087c3b5805fe0b8a46ba622a962880b5d64
- https://www.debian.org/security/2023/dsa-5480
- https://security.netapp.com/advisory/ntap-20230908-0002/
- https://www.debian.org/security/2023/dsa-5492
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://cert-portal.siemens.com/productcert/html/ssa-831302.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-806742.html
- https://cert-portal.siemens.com/productcert/html/ssa-769027.html