CVE-2017-3878: Buffer Overflow
First published: Fri Mar 17 2017(Updated: )
A Denial of Service vulnerability in the Telnet remote login functionality of Cisco NX-OS Software running on Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to cause a Telnet process used for login to terminate unexpectedly and the login attempt to fail. There is no impact to user traffic flowing through the device. Affected Products: This vulnerability affects Cisco Nexus 9000 Series Switches that are running Cisco NX-OS Software and are configured to allow remote Telnet connections to the device. More Information: CSCux46778. Known Affected Releases: 7.0(3)I3(0.170). Known Fixed Releases: 7.0(3)I3(1) 7.0(3)I3(0.257) 7.0(3)I3(0.255) 7.0(3)I2(2e) 7.0(3)F1(1.22) 7.0(3)F1(1).
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco NX-OS | =7.0\(3\)i3\(0.170\) | |
| Cisco Nexus 92160YC-X Firmware | ||
| Cisco Nexus 92300YC Firmware | ||
| Cisco Nexus 92304QC | ||
| Cisco Nexus 9236C | ||
| Cisco Nexus 9272Q Switch | ||
| Cisco Nexus 93108TC-EX-24 | ||
| Cisco Nexus 93120TX | ||
| Cisco Nexus 93128tx | ||
| Cisco Nexus 9000 Series Switch | ||
| Cisco Nexus 93180YC-EX-24 | ||
| Cisco Nexus 9332pq | ||
| Cisco Nexus 9336PQ | ||
| Cisco Nexus 9372PX-E | ||
| Cisco Nexus 9372px | ||
| Cisco Nexus 9372TX-E | ||
| Cisco Nexus 9372TX | ||
| Cisco Nexus 9396PX Switch | ||
| Cisco Nexus 9396TX | ||
| Cisco Nexus 9508 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-3878?
The severity of CVE-2017-3878 is rated as medium with a score of 5.3.
What systems are affected by CVE-2017-3878?
CVE-2017-3878 affects Cisco NX-OS Software version 7.0(3)i3(0.170) on Cisco Nexus 9000 Series Switches.
How does CVE-2017-3878 impact system security?
CVE-2017-3878 allows an unauthenticated remote attacker to cause a Telnet process to terminate unexpectedly, leading to denial of service.
How do I fix CVE-2017-3878?
To fix CVE-2017-3878, upgrade the Cisco NX-OS Software to a version that addresses the vulnerability.
Is there a workaround for CVE-2017-3878?
Currently, there are no documented workarounds for mitigating the effects of CVE-2017-3878.
- agent/type
- agent/weakness
- agent/severity
- agent/author
- agent/description
- agent/first-publish-date
- agent/last-modified-date
- agent/references
- agent/event
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/cisco
- canonical/cisco nx-os
- version/cisco nx-os/7.0\(3\)i3\(0.170\)
- canonical/cisco nexus 92160yc-x firmware
- canonical/cisco nexus 92300yc firmware
- canonical/cisco nexus 92304qc
- canonical/cisco nexus 9236c
- canonical/cisco nexus 9272q switch
- canonical/cisco nexus 93108tc-ex-24
- canonical/cisco nexus 93120tx
- canonical/cisco nexus 93128tx
- canonical/cisco nexus 9000 series switch
- canonical/cisco nexus 93180yc-ex-24
- canonical/cisco nexus 9332pq
- canonical/cisco nexus 9336pq
- canonical/cisco nexus 9372px-e
- canonical/cisco nexus 9372px
- canonical/cisco nexus 9372tx-e
- canonical/cisco nexus 9372tx
- canonical/cisco nexus 9396px switch
- canonical/cisco nexus 9396tx
- canonical/cisco nexus 9508