CVE-2015-0275
First published: Wed Feb 18 2015(Updated: )
A flaw was found in the way the Linux kernel's EXT4 filesystem handled page size > block size condition when fallocate zero range functionality is used. Acknowledgements: This issue was discovered by Xiong Zhou of Red Hat.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <=4.0.5 | |
| Oracle Linux | =7 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
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Reference Links
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0f2af21aae11972fa924374ddcf52e88347cf5a8
- http://rhn.redhat.com/errata/RHSA-2015-1778.html
- http://rhn.redhat.com/errata/RHSA-2015-1787.html
- http://www.openwall.com/lists/oss-security/2015/02/23/14
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- http://www.securityfocus.com/bid/75139
- http://www.securitytracker.com/id/1034454
- http://www.spinics.net/lists/linux-ext4/msg47193.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1193907
- https://github.com/torvalds/linux/commit/0f2af21aae11972fa924374ddcf52e88347cf5a8
- https://support.f5.com/csp/article/K05211147
- https://launchpad.net/bugs/cve/CVE-2015-0275
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1195178
- https://rhn.redhat.com/errata/RHSA-2015-1787.html
- https://rhn.redhat.com/errata/RHSA-2015-1788.html
- https://rhn.redhat.com/errata/RHSA-2015-1778.html
- https://security-tracker.debian.org/tracker/CVE-2015-0275
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0275
- https://nvd.nist.gov/vuln/detail/CVE-2015-0275
- https://ubuntu.com/security/CVE-2015-0275
Frequently Asked Questions
What is the severity of CVE-2015-0275?
CVE-2015-0275 is rated as having medium severity due to its potential impact on file integrity.
How do I fix CVE-2015-0275?
To mitigate CVE-2015-0275, update the Linux kernel to version 4.0.5 or later.
Which systems are affected by CVE-2015-0275?
CVE-2015-0275 affects the Linux kernel prior to version 4.0.6, especially those using the EXT4 filesystem.
What functionality is exploited in CVE-2015-0275?
CVE-2015-0275 exploits a flaw in the fallocate zero range functionality when page size exceeds block size.
Who discovered CVE-2015-0275?
CVE-2015-0275 was discovered by Xiong Zhou of Red Hat.
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