CVE-2017-5970: Null Pointer Dereference
First published: Mon Feb 13 2017(Updated: )
A vulnerability was found in the Linux kernel. A remote attacker that can send packets containing malicious IP options could cause the ipv4_pktinfo_prepare() function to drop/free the dst. This could result in a system crash or possible privilege escalation if the attacker is able to place crafted objects in this dropped location. Upstream patch: <a href="http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b2cef20f19c87999fff3da4071e66937db9644">http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b2cef20f19c87999fff3da4071e66937db9644</a> References: <a href="http://seclists.org/oss-sec/2017/q1/414">http://seclists.org/oss-sec/2017/q1/414</a> <a href="https://patchwork.ozlabs.org/patch/724136/">https://patchwork.ozlabs.org/patch/724136/</a>
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Android | ||
| Linux Kernel | <=4.9.9 | |
| 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/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b2cef20f19c87999fff3da4071e66937db9644
- http://www.debian.org/security/2017/dsa-3791
- http://www.openwall.com/lists/oss-security/2017/02/12/3
- http://www.securityfocus.com/bid/96233
- https://access.redhat.com/errata/RHSA-2017:1842
- https://access.redhat.com/errata/RHSA-2017:2077
- https://access.redhat.com/errata/RHSA-2017:2669
- https://bugzilla.redhat.com/show_bug.cgi?id=1421638
- https://github.com/torvalds/linux/commit/34b2cef20f19c87999fff3da4071e66937db9644
- https://patchwork.ozlabs.org/patch/724136/
- https://source.android.com/security/bulletin/2017-07-01
- https://launchpad.net/bugs/cve/CVE-2017-5970
- http://seclists.org/oss-sec/2017/q1/414
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1433198
- https://source.android.com//git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b2cef20f19c87999fff3da4071e66937db9644
- https://source.android.com/docs/security/bulletin/2017-07-01 (Advisory)
- https://github.com/torvalds/linux/commit/f84af32cbca70a3c6d30463dc08c7984af11c277
- https://security-tracker.debian.org/tracker/CVE-2017-5970
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5970
- https://nvd.nist.gov/vuln/detail/CVE-2017-5970
- https://ubuntu.com/security/CVE-2017-5970
Frequently Asked Questions
What is CVE-2017-5970?
CVE-2017-5970 is a vulnerability in the Linux kernel that allows attackers to cause a denial of service by making crafted system calls or sending IPv4 traffic with invalid IP options.
What is the severity of CVE-2017-5970?
CVE-2017-5970 has a severity rating of high (7 out of 10).
How does CVE-2017-5970 affect Linux kernel?
CVE-2017-5970 affects the Linux kernel versions up to 4.9.9.
What is the remedy for CVE-2017-5970?
The remedy for CVE-2017-5970 is to update the Linux kernel to version 4.10 or later.
Where can I find more information about CVE-2017-5970?
You can find more information about CVE-2017-5970 at the following references: [Link 1](http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=34b2cef20f19c87999fff3da4071e66937db9644), [Link 2](http://seclists.org/oss-sec/2017/q1/414), [Link 3](https://patchwork.ozlabs.org/patch/724136/).
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