CVE-2021-3347 — Use After Free in Linux

CWE-416 — Use After Free17 documents9 sources
Severity
7.8HIGHNVD
OSV6.7OSV5.5OSV3.3
EPSS
0.2%
top 58.49%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
24
Linux KernelDebian LinuxDebian Linux+21 more
Timeline
PublishedJan 29
Latest updateFeb 14

Description

An issue was discovered in the Linux kernel through 5.10.11. PI futexes have a kernel stack use-after-free during fault handling, allowing local users to execute code in the kernel, aka CID-34b1a1ce1458.

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 Packages24 packages

▶Debianlinux/linux_kernel< 5.10.12-1+3
▶Ubuntulinux/linux_kernel< 4.15.0-141.145+1
▶NVDlinux/linux_kernel5.10.11

Also affects: Debian Linux 10.0, 9.0, Fedora 32, 33

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

7
GHSA
GHSA-8r42-h5pm-2vw2: An issue was discovered in the Linux kernel through 5↗2022-05-24
▶
OSV
CVE-2021-3347: In fixup_pi_state_owner of futex↗2021-08-01
▶
OSV
linux, linux-aws, linux-aws-hwe, linux-azure, linux-azure-4.15, linux-dell300x, linux-gcp, linux-gcp-4.15, linux-kvm, linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities↗2021-04-13
▶
OSV
linux, linux-aws, linux-azure, linux-gcp, linux-hwe-5.8, linux-kvm, linux-oracle, linux-raspi vulnerabilities↗2021-04-13
▶
OSV
linux-oem-5.10 vulnerabilities↗2021-03-20
▶

📋Vendor Advisories

9
Palo Alto
PAN-SA-2024-0001 Informational Bulletin: Impact of OSS CVEs in PAN-OS↗2024-02-14
▶
Android
CVE-2021-3347: Futex↗2021-08-01
▶
Ubuntu
Linux kernel vulnerabilities↗2021-04-13
▶
Ubuntu
Linux kernel vulnerabilities↗2021-04-13
▶
Ubuntu
Linux kernel (OEM) vulnerabilities↗2021-03-20
▶