CVE-2023-31436 — Out-of-bounds Write in Kernel

CWE-787 — Out-of-bounds Write43 documents11 sources
Severity
7.8HIGHNVD
OSV7.1OSV6.6OSV6.5OSV5.7OSV5.5OSV4.7
EPSS
0.0%
top 88.75%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
11
Linux KernelDebian LinuxPaloalto Pan-os+8 more
Timeline
PublishedApr 28
Latest updateFeb 15

Description

qfq_change_class in net/sched/sch_qfq.c in the Linux kernel before 6.2.13 allows an out-of-bounds write because lmax can exceed QFQ_MIN_LMAX.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages13 packages

▶NVDlinux/linux_kernel3.7 — 4.14.314+6
▶Debianlinux/linux_kernel< 5.10.179-1+3
▶Ubuntulinux/linux_kernel< 4.15.0-212.223+14
▶debiandebian/linux< linux 6.1.27-1 (bookworm)

Patches

Patch: cdn.kernel.org ↗Patch: github.com ↗Patch: www.spinics.net ↗

🔴Vulnerability Details

19
OSV
Kernel Live Patch Security Notice↗2023-11-28
▶
OSV
linux vulnerabilities↗2023-10-30
▶
OSV
linux-oem-6.0 vulnerabilities↗2023-09-19
▶
OSV
linux-iot vulnerabilities↗2023-07-27
▶
OSV
Kernel Live Patch Security Notice↗2023-07-25
▶

📋Vendor Advisories

22
CISA ICS
Siemens SCALANCE XCM-/XRM-300↗2024-02-15
▶
Palo Alto
PAN-SA-2024-0001 Informational Bulletin: Impact of OSS CVEs in PAN-OS↗2024-02-14
▶
Ubuntu
Kernel Live Patch Security Notice↗2023-11-28
▶
Ubuntu
Linux kernel vulnerabilities↗2023-10-30
▶
Red Hat
kernel: sch_qfq: net scheduler out-of-bounds write in qfq_update_agg()↗2023-10-09
▶

💬Community

1
Bugzilla
CVE-2023-31436 kernel: out-of-bounds write in qfq_change_class function↗2023-05-02
▶
CVE-2023-31436 — Out-of-bounds Write in Linux Kernel | cvebase