Vulnerability Description
A null-pointer dereference vulnerability was found in libtirpc before version 0.3.3-rc3. The return value of makefd_xprt() was not checked in all instances, which could lead to a crash when the server exhausted the maximum number of available file descriptors. A remote attacker could cause an rpc-based application to crash by flooding it with new connections.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libtirpc Project | Libtirpc | < 0.3.3 |
| Canonical | Ubuntu Linux | 14.04 |
| Debian | Debian Linux | 8.0 |
| Redhat | Enterprise Linux | 7.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server Aus | 7.4 |
| Redhat | Enterprise Linux Server Eus | 7.4 |
| Redhat | Enterprise Linux Workstation | 7.0 |
Related Weaknesses (CWE)
References
- http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=1c77f7a869bdea2a3
- https://access.redhat.com/errata/RHBA-2017:1991Third Party Advisory
- https://bugzilla.novell.com/show_bug.cgi?id=968175Issue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14622Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/08/msg00034.htmlMailing ListThird Party Advisory
- https://usn.ubuntu.com/3759-1/Third Party Advisory
- https://usn.ubuntu.com/3759-2/Third Party Advisory
- http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=1c77f7a869bdea2a3
- https://access.redhat.com/errata/RHBA-2017:1991Third Party Advisory
- https://bugzilla.novell.com/show_bug.cgi?id=968175Issue TrackingThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14622Issue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/08/msg00034.htmlMailing ListThird Party Advisory
- https://usn.ubuntu.com/3759-1/Third Party Advisory
- https://usn.ubuntu.com/3759-2/Third Party Advisory
FAQ
What is CVE-2018-14622?
CVE-2018-14622 is a vulnerability with a CVSS score of 7.5 (HIGH). A null-pointer dereference vulnerability was found in libtirpc before version 0.3.3-rc3. The return value of makefd_xprt() was not checked in all instances, which could lead to a crash when the server...
How severe is CVE-2018-14622?
CVE-2018-14622 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-14622?
Check the references section above for vendor advisories and patch information. Affected products include: Libtirpc Project Libtirpc, Canonical Ubuntu Linux, Debian Debian Linux, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop.