CVE-2015-2666: Buffer Overflow
First published: Mon Mar 23 2015(Updated: )
It was found that the Linux kernel's Intel early microcode loader was vulnerable to a stack overflow. On a UEFI Secure Boot enabled system, a local root user could use this flaw to increase their privileges to the kernel (ring0) level despite the additional restrictions in place. Upstream fix: <a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit?id=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit?id=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4</a>
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | <=3.19.8 | |
| Linux Linux kernel | >=3.9<3.10.83 | |
| Linux Linux kernel | >=3.11<3.12.40 | |
| Linux Linux kernel | >=3.13<3.14.47 | |
| Linux Linux kernel | >=3.15<3.16.35 | |
| Linux Linux kernel | >=3.17<3.18.19 | |
| Fedoraproject Fedora | =21 | |
| 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 |
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Reference Links
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/153329.html
- http://rhn.redhat.com/errata/RHSA-2015-1534.html
- http://www.openwall.com/lists/oss-security/2015/03/20/18
- http://www.securitytracker.com/id/1032414
- https://bugzilla.redhat.com/show_bug.cgi?id=1204722
- https://github.com/torvalds/linux/commit/f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4
- https://launchpad.net/bugs/cve/CVE-2015-2666
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit?id=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1204724
- https://access.redhat.com/errata/RHSA-2015:1565
- https://rhn.redhat.com/errata/RHSA-2015-1534.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=ec400ddeff200b068ddc6c70f7321f49ecf32ed5
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f84598bd7c851f8b0bf8cd0d7c3be0d73c432ff4
- https://www.openwall.com/lists/oss-security/2015/03/18/7
- https://security-tracker.debian.org/tracker/CVE-2015-2666
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2666
- https://nvd.nist.gov/vuln/detail/CVE-2015-2666
- https://ubuntu.com/security/CVE-2015-2666
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