CVE-2021-3347
7.8 HIGHAn issue was discovered in the Linux kernel through 5.10.11
Published: 2021-01-29 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 7.8 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-416
Affected products
| Vendor | Product |
|---|---|
| debian | debian_linux, fedora, linux_kernel |
| fedoraproject | debian_linux, fedora, linux_kernel |
| linux | debian_linux, fedora, linux_kernel |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-3347
- [Other]http://www.openwall.com/lists/oss-security/2021/01/29/4
- [Other]http://www.openwall.com/lists/oss-security/2021/01/29/5
- [Exploit reference]http://www.openwall.com/lists/oss-security/2021/02/01/4
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04b79c55201f02ffd675e1231d731365e335c307
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=12bb3f7f1b03d5913b3f9d4236a488aa7774dfe9
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2156ac1934166d6deb6cd0f6ffc4c1076ec63697
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34b1a1ce1458f50ef27c54e28eb9b1947012907a
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6ccc84f917d33312eb2846bd7b567639f585ad6d
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5cade200ab9a2a3be9e7f32a752c8d86b502ec7
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c64396cc36c6e60704ab06c1fb1c4a46179c9120
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2dac39d93987f7de1e20b3988c8685523247ae2
- [Other]https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
- [Other]https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
- [Other]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CXAVDAK4RLAHBHHGEPL73UFXSI6BXQ7Q/
- [Other]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QOBMXDJABYE76RKNBAWA2E4TSSBX7CSJ/
- [Other]https://security.netapp.com/advisory/ntap-20210304-0005/
- [Other]https://www.debian.org/security/2021/dsa-4843
- [Other]https://www.openwall.com/lists/oss-security/2021/01/29/1
- [Other]https://www.openwall.com/lists/oss-security/2021/01/29/3
- [Other]http://www.openwall.com/lists/oss-security/2021/01/29/4
- [Other]http://www.openwall.com/lists/oss-security/2021/01/29/5
- [Exploit reference]http://www.openwall.com/lists/oss-security/2021/02/01/4
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=04b79c55201f02ffd675e1231d731365e335c307
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=12bb3f7f1b03d5913b3f9d4236a488aa7774dfe9
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=2156ac1934166d6deb6cd0f6ffc4c1076ec63697
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34b1a1ce1458f50ef27c54e28eb9b1947012907a
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6ccc84f917d33312eb2846bd7b567639f585ad6d
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c5cade200ab9a2a3be9e7f32a752c8d86b502ec7
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c64396cc36c6e60704ab06c1fb1c4a46179c9120
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f2dac39d93987f7de1e20b3988c8685523247ae2
- [Other]https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html
- [Other]https://lists.debian.org/debian-lts-announce/2021/03/msg00010.html
- [Other]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CXAVDAK4RLAHBHHGEPL73UFXSI6BXQ7Q/
- [Other]https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QOBMXDJABYE76RKNBAWA2E4TSSBX7CSJ/
- [Other]https://security.netapp.com/advisory/ntap-20210304-0005/
- [Other]https://www.debian.org/security/2021/dsa-4843
- [Other]https://www.openwall.com/lists/oss-security/2021/01/29/1
- [Other]https://www.openwall.com/lists/oss-security/2021/01/29/3
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