CVE-2015-5879: Input Validation
First published: Fri Sep 18 2015(Updated: )
XNU in the kernel in Apple iOS before 9 does not properly validate the headers of TCP packets, which allows remote attackers to bypass the sequence-number protection mechanism and cause a denial of service (TCP connection disruption) via a crafted header.
Credit: product-security@apple.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| iStyle @cosme iPhone OS | <=8.4.1 | |
| Apple iOS and macOS | <=10.10.5 |
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
Frequently Asked Questions
What is the severity of CVE-2015-5879?
CVE-2015-5879 has a moderate severity rating due to its potential to cause denial of service.
How do I fix CVE-2015-5879?
To fix CVE-2015-5879, update to a secure version of iOS 9 or later, or macOS 10.11 or later.
What systems are affected by CVE-2015-5879?
CVE-2015-5879 affects Apple iOS versions below 9 and macOS Yosemite versions below 10.11.
What does CVE-2015-5879 exploit in Apple systems?
CVE-2015-5879 exploits improper validation of TCP packet headers, allowing sequence-number protection bypass.
What impact does CVE-2015-5879 have on users?
CVE-2015-5879 can lead to disrupted TCP connections, causing user-facing denial of service.
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/weakness
- agent/last-modified-date
- agent/severity
- agent/first-publish-date
- agent/event
- agent/description
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/apple
- canonical/istyle @cosme iphone os
- version/istyle @cosme iphone os/8.4.1
- canonical/apple ios and macos
- version/apple ios and macos/10.10.5