CVE-2016-4805
HIGHCVSS 7.8/10EPSS 0.48%
Last modified
CVE-2016-4805 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. Use-after-free vulnerability in drivers/net/ppp/ppp_generic.c in the Linux kernel before 4.5.2 allows local users to cause a denial of service (memory corruption and system crash, or spinlock) or possibly have unspecified other impact by removing a network namespace, related to the ppp_register_net_channel and ppp_unregister_channel functions.. EPSS estimates a 0.48% chance of exploitation in the next 30 days.
Description
Use-after-free vulnerability in drivers/net/ppp/ppp_generic.c in the Linux kernel before 4.5.2 allows local users to cause a denial of service (memory corruption and system crash, or spinlock) or possibly have unspecified other impact by removing a network namespace, related to the ppp_register_net_channel and ppp_unregister_channel functions.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Novell | Suse Linux Enterprise Desktop | 12.0 | — |
| Novell | Suse Linux Enterprise Workstation Extension | 12.0 | — |
| Novell | Suse Linux Enterprise Module For Public Cloud | 12.0 | — |
| Novell | Suse Linux Enterprise Server | 11.0 | Sp4 |
| Novell | Opensuse Leap | 42.1 | — |
| Novell | Suse Linux Enterprise Software Development Kit | 11.0 | Sp4 |
| Redhat | Enterprise Linux | 6.0 | — |
| Canonical | Ubuntu Linux | 12.04 | — |
| Linux | Linux Kernel | >= 2.6.30, < 3.2.80 | — |
| Linux | Linux Kernel | >= 3.3, < 3.10.102 | — |
| Linux | Linux Kernel | >= 3.11, < 3.12.59 | — |
| Linux | Linux Kernel | >= 3.13, < 3.14.67 | — |
| Linux | Linux Kernel | >= 3.15, < 3.16.35 | — |
| Linux | Linux Kernel | >= 3.17, < 3.18.37 | — |
| Linux | Linux Kernel | >= 3.19, < 4.1.28 | — |
| Linux | Linux Kernel | >= 4.2, < 4.4.8 | — |
| Linux | Linux Kernel | >= 4.5, < 4.5.2 | — |
| Novell | Suse Linux Enterprise Software Development Kit | 12.0 | — |
| Novell | Suse Linux Enterprise Server | 12.0 | — |
| Redhat | Enterprise Linux | 7.0 | — |
| Oracle | Linux | 6 | — |
| Novell | Suse Linux Enterprise Real Time Extension | 11.0 | Sp4 |
| Novell | Suse Linux Enterprise Real Time Extension | 12.0 | Sp1 |
| Novell | Suse Linux Enterprise Live Patching | 12.0 | — |
References
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.htmlMailing List, Release Notes, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.htmlMailing List, Release Notes, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlMailing List, Release Notes, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.htmlMailing List, Third Party Advisory
- http://www.debian.org/security/2016/dsa-3607Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.2Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/05/15/2Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/90605Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1036763Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-3021-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3021-2Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1335803Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/1f461dcdd296eecedaffffc6bae2bfa90bd7eb89Patch, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.htmlMailing List, Release Notes, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.htmlMailing List, Release Notes, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.htmlMailing List, Release Notes, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.htmlMailing List, Third Party Advisory
- http://www.debian.org/security/2016/dsa-3607Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.2Mailing List, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2016/05/15/2Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/90605Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1036763Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-3021-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3021-2Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1335803Issue Tracking, Third Party Advisory
- https://github.com/torvalds/linux/commit/1f461dcdd296eecedaffffc6bae2bfa90bd7eb89Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2016-4805?
Use-after-free vulnerability in drivers/net/ppp/ppp_generic.c in the Linux kernel before 4.5.2 allows local users to cause a denial of service (memory corruption and system crash, or spinlock) or possibly have unspecified other impact by removing a network namespace, related to the ppp_register_net_channel and ppp_unregister_channel functions.
How severe is CVE-2016-4805?
CVE-2016-4805 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.48% probability of exploitation in the next 30 days.
How do I fix CVE-2016-4805?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2016
- CVE-2016-4796Heap-based buffer overflow in the color_cmyk_to_rgb in commo…
- CVE-2016-4797Divide-by-zero vulnerability in the opj_tcd_init_tile functi…
- CVE-2016-4800The path normalization mechanism in PathResource class in Ec…
- CVE-2016-4802Multiple untrusted search path vulnerabilities in cURL and l…
- CVE-2016-4803CRLF injection vulnerability in the send email functionality…
- CVE-2016-4804The read_boot function in boot.c in dosfstools before 4.0 al…
- CVE-2016-4806Web2py versions 2.14.5 and below was affected by Local File …
- CVE-2016-4807Web2py versions 2.14.5 and below was affected by Reflected X…
- CVE-2016-4808Web2py versions 2.14.5 and below was affected by CSRF (Cross…
- CVE-2016-4809The archive_read_format_cpio_read_header function in archive…
- CVE-2016-4810Citrix Studio before 7.6.1000, Citrix XenDesktop 7.x before …
- CVE-2016-4811The NTT Broadband Platform Japan Connected-free Wi-Fi applic…
Are you affected by CVE-2016-4805?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST