- Vulnerability/
- USN-2684-1
USN-2684-1: Linux kernel vulnerabilities
First published: Thu Jul 23 2015(Updated: )
A flaw was discovered in the kvm (kernel virtual machine) subsystem's kvm_apic_has_events function. A unprivileged local user could exploit this flaw to cause a denial of service (system crash). (CVE-2015-4692) Daniel Borkmann reported a kernel crash in the Linux kernel's BPF filter JIT optimization. A local attacker could exploit this flaw to cause a denial of service (system crash). (CVE-2015-4700) A flaw was discovered in how the Linux kernel handles invalid UDP checksums. A remote attacker could exploit this flaw to cause a denial of service using a flood of UDP packets with invalid checksums. (CVE-2015-5364) A flaw was discovered in how the Linux kernel handles invalid UDP checksums. A remote attacker can cause a denial of service against applications that use epoll by injecting a single packet with an invalid checksum. (CVE-2015-5366)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-3.19.0-23-powerpc64-smp | <3.19.0-23.24 | 3.19.0-23.24 |
| Ubuntu gir1.2-packagekitglib-1.0 | =15.04 | |
| All of | ||
| ubuntu/linux-image-3.19.0-23-generic | <3.19.0-23.24 | 3.19.0-23.24 |
| Ubuntu gir1.2-packagekitglib-1.0 | =15.04 | |
| All of | ||
| ubuntu/linux-image-3.19.0-23-powerpc-smp | <3.19.0-23.24 | 3.19.0-23.24 |
| Ubuntu gir1.2-packagekitglib-1.0 | =15.04 | |
| All of | ||
| ubuntu/linux-image-3.19.0-23-powerpc64-emb | <3.19.0-23.24 | 3.19.0-23.24 |
| Ubuntu gir1.2-packagekitglib-1.0 | =15.04 | |
| All of | ||
| ubuntu/linux-image-3.19.0-23-generic-lpae | <3.19.0-23.24 | 3.19.0-23.24 |
| Ubuntu gir1.2-packagekitglib-1.0 | =15.04 | |
| All of | ||
| ubuntu/linux-image-3.19.0-23-lowlatency | <3.19.0-23.24 | 3.19.0-23.24 |
| Ubuntu gir1.2-packagekitglib-1.0 | =15.04 | |
| All of | ||
| ubuntu/linux-image-3.19.0-23-powerpc-e500mc | <3.19.0-23.24 | 3.19.0-23.24 |
| Ubuntu gir1.2-packagekitglib-1.0 | =15.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2015-4692
- https://ubuntu.com/security/CVE-2015-4700
- https://ubuntu.com/security/CVE-2015-5364
- https://ubuntu.com/security/CVE-2015-5366
- https://ubuntu.com/security/notices/USN-2682-1
- https://ubuntu.com/security/notices/USN-2685-1
- https://ubuntu.com/security/notices/USN-2683-1
- https://ubuntu.com/security/notices/USN-2681-1
- https://ubuntu.com/security/notices/USN-2680-1
- https://ubuntu.com/security/notices/USN-2678-1
- https://ubuntu.com/security/notices/USN-2679-1
- https://ubuntu.com/security/notices/USN-2666-1
- https://ubuntu.com/security/notices/USN-2664-1
- https://ubuntu.com/security/notices/USN-2713-1
- https://ubuntu.com/security/notices/USN-2714-1
- https://launchpad.net/ubuntu/+source/linux/3.19.0-23.24
- https://ubuntu.com/security/notices/USN-2684-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-2684-1?
USN-2684-1 has been classified as a denial of service vulnerability that can cause system crashes.
How do I fix USN-2684-1?
To fix USN-2684-1, upgrade your Linux kernel to version 3.19.0-23.24 or later.
Who is affected by USN-2684-1?
USN-2684-1 affects unprivileged local users running Ubuntu Linux 15.04 with specific kernel packages.
What is the impact of exploiting USN-2684-1?
Exploiting USN-2684-1 can result in a denial of service, leading to a system crash.
When was USN-2684-1 reported?
USN-2684-1 was reported on October 20, 2015, in relation to a flaw discovered in the kvm subsystem.
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