#VU33438 NULL pointer dereference - CVE-2017-18189
Vulnerability identifier: #VU33438
Vulnerability risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID:
CWE-ID:
CWE-476
Exploitation vector: Network
Exploit availability: No
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the startread function in xa.c in Sound eXchange (SoX) through 14.4.2, a corrupt header specifying zero channels triggers an infinite loop with a resultant NULL pointer dereference, which may allow a remote attacker to cause a denial-of-service. A remote attacker can perform a denial of service (DoS) attack.
Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
External links
https://access.redhat.com/errata/RHSA-2019:2283
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881121
https://lists.debian.org/debian-lts-announce/2019/02/msg00042.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/62RARFRXGKPNNFFNVDV7DHJSOKAIZ3CX/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EUKFZQSZG2ABMTAMOGBMY7MJNSGEIYTL/
https://public-inbox.org/sox-devel/20171109114554.16297-1-mans@mansr.com/raw
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
