CVE-2015-1421: Use After Free
First published: Thu Feb 26 2015(Updated: )
An use after free flaw was found in the Linux kernel SCTP implementation handled auth keys reference counting during INIT collisions. A remote user could use this flaw to crash the system or, though unlikely, escalate their privileges on the system. Upstream patch: <a href="https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=600ddd6825543962fb807884169e57b580dba208">https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=600ddd6825543962fb807884169e57b580dba208</a> Acknowledgements: This issue was discovered by Sun Baoliang of Red Hat.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | >=2.6.24<3.2.67 | |
| Linux kernel | >=3.3<3.4.107 | |
| Linux kernel | >=3.5<3.10.70 | |
| Linux kernel | >=3.11<3.12.38 | |
| Linux kernel | >=3.13<3.14.34 | |
| Linux kernel | >=3.15<3.16.35 | |
| Linux kernel | >=3.17<3.18.8 | |
| Ubuntu Linux | =12.04 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =14.10 | |
| Debian | =7.0 | |
| Debian | =8.0 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.17-1 |
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Reference Links
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=600ddd6825543962fb807884169e57b580dba208
- http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
- http://rhn.redhat.com/errata/RHSA-2015-0726.html
- http://rhn.redhat.com/errata/RHSA-2015-0751.html
- http://rhn.redhat.com/errata/RHSA-2015-0782.html
- http://rhn.redhat.com/errata/RHSA-2015-0864.html
- http://rhn.redhat.com/errata/RHSA-2015-1082.html
- http://www.debian.org/security/2015/dsa-3170
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.18.8
- http://www.openwall.com/lists/oss-security/2015/01/29/15
- http://www.securityfocus.com/bid/72356
- http://www.securitytracker.com/id/1032172
- http://www.ubuntu.com/usn/USN-2541-1
- http://www.ubuntu.com/usn/USN-2542-1
- http://www.ubuntu.com/usn/USN-2545-1
- http://www.ubuntu.com/usn/USN-2546-1
- http://www.ubuntu.com/usn/USN-2562-1
- http://www.ubuntu.com/usn/USN-2563-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1196581
- https://github.com/torvalds/linux/commit/600ddd6825543962fb807884169e57b580dba208
- https://launchpad.net/bugs/cve/CVE-2015-1421
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=600ddd6825543962fb807884169e57b580dba208
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1196595
- https://rhn.redhat.com/errata/RHSA-2015-0727.html
- https://rhn.redhat.com/errata/RHSA-2015-0726.html
- https://rhn.redhat.com/errata/RHSA-2015-0751.html
- https://rhn.redhat.com/errata/RHSA-2015-0782.html
- https://rhn.redhat.com/errata/RHSA-2015-0864.html
- https://rhn.redhat.com/errata/RHSA-2015-1030.html
- https://rhn.redhat.com/errata/RHSA-2015-1082.html
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=600ddd6825543962fb807884169e57b580dba208
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=600ddd6825543962fb807884169e57b580dba208
- https://security-tracker.debian.org/tracker/CVE-2015-1421
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1421
- https://nvd.nist.gov/vuln/detail/CVE-2015-1421
- https://ubuntu.com/security/CVE-2015-1421
Frequently Asked Questions
What is the severity of CVE-2015-1421?
CVE-2015-1421 is considered a high severity vulnerability due to its potential to crash the system or allow privilege escalation.
How do I fix CVE-2015-1421?
To fix CVE-2015-1421, update the Linux kernel to a version that includes the patches addressing this issue.
What versions of the Linux kernel are affected by CVE-2015-1421?
CVE-2015-1421 affects specific versions of the Linux kernel ranging from 2.6.24 up to 3.18.8.
Can CVE-2015-1421 be exploited remotely?
Yes, CVE-2015-1421 can be exploited by remote users to execute malicious actions.
Is privilege escalation possible with CVE-2015-1421?
Although unlikely, CVE-2015-1421 may permit privilege escalation under certain conditions.
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