CVE-2021-41864 — Integer Overflow or Wraparound in Kernel

CWE-190 — Integer Overflow or WraparoundCWE-787 — Out-of-bounds Write22 documents8 sources
Severity
7.8HIGHNVD
OSV6.5OSV5.5OSV4.7OSV4.4OSV3.3
EPSS
0.0%
top 91.48%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
7
Linux KernelDebian LinuxDebian Linux+4 more
Timeline
PublishedOct 2
Latest updateFeb 14

Description

prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.

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 Packages7 packages

▶NVDlinux/linux_kernel< 5.14.12
▶Debianlinux/linux_kernel< 5.10.84-1+3
▶Ubuntulinux/linux_kernel< 4.15.0-166.174+2

Also affects: Debian Linux 10.0, 9.0, Fedora 33, 34, 35

Patches

Patch: cdn.kernel.org ↗Patch: git.kernel.org ↗Patch: github.com ↗

🔴Vulnerability Details

10
GHSA
GHSA-c376-w83c-8gx5: prealloc_elems_and_freelist in kernel/bpf/stackmap↗2022-05-24
▶
OSV
CVE-2021-41864: In prealloc_elems_and_freelist of stackmap↗2022-03-01
▶
OSV
linux, linux-gcp, linux-gcp-5.4, linux-hwe-5.4 regression↗2022-01-12
▶
OSV
linux-oem-5.13 vulnerabilities↗2022-01-11
▶
OSV
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-bluefield, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-ibm, linux-kvm, l↗2022-01-06
▶

📋Vendor Advisories

11
Palo Alto
PAN-SA-2024-0001 Informational Bulletin: Impact of OSS CVEs in PAN-OS↗2024-02-14
▶
Ubuntu
Linux kernel regression↗2022-01-12
▶
Ubuntu
Linux kernel (OEM) vulnerabilities↗2022-01-11
▶
Ubuntu
Linux kernel vulnerabilities↗2022-01-06
▶
Ubuntu
Linux kernel vulnerabilities↗2022-01-06
▶
CVE-2021-41864 — Integer Overflow or Wraparound | cvebase