CVE-2017-17819: Null Pointer Dereference
First published: Thu Dec 21 2017(Updated: )
In Netwide Assembler (NASM) 2.14rc0, there is an illegal address access in the function find_cc() in asm/preproc.c that will cause a remote denial of service attack, because pointers associated with skip_white_ calls are not validated.
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 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://repo.or.cz/nasm.git/commit/7524cfd91492e6e3719b959498be584a9ced13af
- https://bugzilla.nasm.us/show_bug.cgi?id=3392435
- https://usn.ubuntu.com/3694-1/
- https://launchpad.net/bugs/cve/CVE-2017-17819
- https://github.com/netwide-assembler/nasm/commit/7524cfd91492e6e3719b959498be584a9ced13af
- https://security-tracker.debian.org/tracker/CVE-2017-17819
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17819
- https://nvd.nist.gov/vuln/detail/CVE-2017-17819
- https://ubuntu.com/security/CVE-2017-17819
Frequently Asked Questions
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2017-17819.
What is the severity level of CVE-2017-17819?
The severity level of CVE-2017-17819 is medium, with a severity value of 5.5.
Which function is affected by CVE-2017-17819?
The function find_cc() in asm/preproc.c is affected by CVE-2017-17819.
How can the vulnerability in Netwide Assembler (NASM) 2.14rc0 be exploited?
The vulnerability in Netwide Assembler (NASM) 2.14rc0 can be exploited by causing a remote denial of service attack through an illegal address access in the function find_cc().
Are there any known fixes for the vulnerability in Netwide Assembler (NASM) 2.14rc0?
Yes, there are fixes available. For Ubuntu, the version 2.13.02 is a known fix. For Debian, versions 2.14-1, 2.15.05-1, and 2.16.01-1 are known fixes.
- collector/nvd-index
- agent/author
- agent/type
- agent/last-modified-date
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/weakness
- agent/severity
- agent/remedy
- agent/event
- agent/description
- agent/references
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- vendor/nasm
- canonical/nasm netwide assembler
- version/nasm netwide assembler/2.14-rc0
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/14.04
- package-manager/debian