CVE-2015-0247: Buffer Overflow
First published: Thu Jan 29 2015(Updated: )
A heap buffer overflow was found in e2fsprgos lib/ext2fs/openfs.c. It allows a trivial arbitrary memory write under certain conditions. Given that fsck is affected, and that an ext2/3/4 image can force a filesystem check on mount, this will allow code execution on systems that have automount enabled by just plugging a device. Acknowledgements: Red Hat would like to thank oCERT for reporting these issues. oCERT acknowledges Jose Duart of the Google Security Team as the original reporter.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/e2fsprogs | <1.42.12 | 1.42.12 |
| e2fsprogs | <=1.42.11 | |
| Debian Linux | =7.0 | |
| Ubuntu | =10.04 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =14.10 | |
| Red Hat Fedora | =20 | |
| Red Hat Fedora | =21 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1187032#c0
- http://git.kernel.org/cgit/fs/ext2/e2fsprogs.git/tree/lib/ext2fs/openfs.c?id=de25d9c#n358
- http://git.kernel.org/cgit/fs/ext2/e2fsprogs.git/tree/lib/ext2fs/openfs.c?id=de25d9c#n381
- http://git.kernel.org/cgit/fs/ext2/e2fsprogs.git/commit/?id=f66e6ce4
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1187032#c2
- http://www.ocert.org/advisories/ocert-2015-002.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1189834
- https://access.redhat.com/security/cve/cve-2015-0247
- https://bugzilla.redhat.com/show_bug.cgi?id=1187032
- http://advisories.mageia.org/MGASA-2015-0061.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-February/149434.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/150606.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/150805.html
- http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00019.html
- http://lists.opensuse.org/opensuse-updates/2015-06/msg00010.html
- http://packetstormsecurity.com/files/130283/e2fsprogs-Input-Sanitization.html
- http://www.debian.org/security/2015/dsa-3166
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:045
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:067
- http://www.securityfocus.com/archive/1/534633/100/0/threaded
- http://www.securityfocus.com/bid/72520
- http://www.ubuntu.com/usn/USN-2507-1
- https://exchange.xforce.ibmcloud.com/vulnerabilities/100740
- https://security.gentoo.org/glsa/201701-06
Frequently Asked Questions
What is the severity of CVE-2015-0247?
CVE-2015-0247 is classified as a critical severity vulnerability due to its potential for arbitrary memory writing and code execution.
How do I fix CVE-2015-0247?
To resolve CVE-2015-0247, upgrade the e2fsprogs package to version 1.42.12 or higher.
Which software is affected by CVE-2015-0247?
CVE-2015-0247 affects multiple versions of e2fsprogs and operating systems like Debian 7.0 and various Ubuntu versions up to 14.10.
Can CVE-2015-0247 be exploited remotely?
Yes, CVE-2015-0247 can potentially be exploited remotely due to its impact on automounting ext2/3/4 file systems.
What are the consequences of CVE-2015-0247 if exploited?
If CVE-2015-0247 is exploited, it can lead to arbitrary code execution within affected systems.
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