CVE-2021-23134: Linux kernel llcp_sock_bind/connect use-after-free
First published: Wed May 12 2021(Updated: )
Last updated 29 November 2024
Credit: psirt@paloaltonetworks.com psirt@paloaltonetworks.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <5.12.4 | |
| Fedoraproject Fedora | =33 | |
| Fedoraproject Fedora | =34 | |
| Debian Debian Linux | =9.0 | |
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.119-1 6.11.10-1 6.12.5-1 |
Remedy
Apply the following patch: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d
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Reference Links
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=c61760e6940d
- https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
- https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/
- https://security.netapp.com/advisory/ntap-20210625-0007/
- https://www.openwall.com/lists/oss-security/2021/05/11/4
- https://launchpad.net/bugs/cve/CVE-2021-23134
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LZYORWNQIHNWRFYRDXBWYWBYM46PDZEN/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QALNQT4LJFVSSA3MWCIECVY4AFPP4X77/
- https://git.kernel.org/linus/c61760e6940dd4039a7f5e84a6afc9cdbf4d82b6
- https://security-tracker.debian.org/tracker/CVE-2021-23134
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-23134
- https://nvd.nist.gov/vuln/detail/CVE-2021-23134
- https://ubuntu.com/security/CVE-2021-23134
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