CVE-2017-17817: Use After Free
First published: Thu Dec 21 2017(Updated: )
In Netwide Assembler (NASM) 2.14rc0, there is a use-after-free in pp_verror in asm/preproc.c that will cause a remote denial of service attack.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Nasm Netwide Assembler | =2.14-rc0 | |
| Canonical Ubuntu Linux | =14.04 | |
| debian/nasm | 2.15.05-1 2.16.01-1 2.16.03-1 |
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Reference Links
- https://bugzilla.nasm.us/show_bug.cgi?id=3392427
- https://usn.ubuntu.com/3694-1/
- https://launchpad.net/bugs/cve/CVE-2017-17817
- https://security-tracker.debian.org/tracker/CVE-2017-17817
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17817
- https://nvd.nist.gov/vuln/detail/CVE-2017-17817
- https://ubuntu.com/security/CVE-2017-17817
Frequently Asked Questions
What is CVE-2017-17817?
CVE-2017-17817 is a vulnerability in Netwide Assembler (NASM) 2.14rc0 that allows for a remote denial of service attack due to a use-after-free vulnerability in pp_verror in asm/preproc.c.
How severe is CVE-2017-17817?
CVE-2017-17817 has a severity rating of 5.5 (medium).
Which software versions are affected?
Versions 2.14rc0 and newer of Netwide Assembler (NASM) are affected by CVE-2017-17817.
How can I fix CVE-2017-17817?
To fix CVE-2017-17817, update Netwide Assembler (NASM) to version 2.13.02 or higher.
Where can I find more information about CVE-2017-17817?
You can find more information about CVE-2017-17817 on the following references: [Bugzilla](https://bugzilla.nasm.us/show_bug.cgi?id=3392427), [Ubuntu Security Notice](https://usn.ubuntu.com/3694-1/), [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-17817)
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