CVE-2021-3347

7.8 HIGH
Published: January 29, 2021 Modified: February 25, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/29/4
Source: cve@mitre.org
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/29/5
Source: cve@mitre.org
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/02/01/4
Source: cve@mitre.org
Exploit Mailing List Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04b79c55201f02ffd675e1231d731365e335c307
Source: cve@mitre.org
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=12bb3f7f1b03d5913b3f9d4236a488aa7774dfe9
Source: cve@mitre.org
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2156ac1934166d6deb6cd0f6ffc4c1076ec63697
Source: cve@mitre.org
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34b1a1ce1458f50ef27c54e28eb9b1947012907a
Source: cve@mitre.org
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6ccc84f917d33312eb2846bd7b567639f585ad6d
Source: cve@mitre.org
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5cade200ab9a2a3be9e7f32a752c8d86b502ec7
Source: cve@mitre.org
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c64396cc36c6e60704ab06c1fb1c4a46179c9120
Source: cve@mitre.org
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2dac39d93987f7de1e20b3988c8685523247ae2
Source: cve@mitre.org
Mailing List Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
Source: cve@mitre.org
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
Source: cve@mitre.org
Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CXAVDAK4RLAHBHHGEPL73UFXSI6BXQ7Q/
Source: cve@mitre.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QOBMXDJABYE76RKNBAWA2E4TSSBX7CSJ/
Source: cve@mitre.org
https://security.netapp.com/advisory/ntap-20210304-0005/
Source: cve@mitre.org
Third Party Advisory
https://www.debian.org/security/2021/dsa-4843
Source: cve@mitre.org
Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/01/29/1
Source: cve@mitre.org
Mailing List Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/01/29/3
Source: cve@mitre.org
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/29/4
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/01/29/5
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/02/01/4
Source: af854a3a-2127-422b-91ae-364da2661108
Exploit Mailing List Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04b79c55201f02ffd675e1231d731365e335c307
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=12bb3f7f1b03d5913b3f9d4236a488aa7774dfe9
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2156ac1934166d6deb6cd0f6ffc4c1076ec63697
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34b1a1ce1458f50ef27c54e28eb9b1947012907a
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6ccc84f917d33312eb2846bd7b567639f585ad6d
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5cade200ab9a2a3be9e7f32a752c8d86b502ec7
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c64396cc36c6e60704ab06c1fb1c4a46179c9120
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2dac39d93987f7de1e20b3988c8685523247ae2
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CXAVDAK4RLAHBHHGEPL73UFXSI6BXQ7Q/
Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QOBMXDJABYE76RKNBAWA2E4TSSBX7CSJ/
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.netapp.com/advisory/ntap-20210304-0005/
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.debian.org/security/2021/dsa-4843
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/01/29/1
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/01/29/3
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory

38 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.8 / 10.0
EPSS (Exploit Probability)
0.2%
46th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-416 CWE-416

Affected Vendors

linux fedoraproject debian

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