critical
9.8
CWE
119 120
Advisory Published
CVE Published
Updated

CVE-2019-17133: Buffer Overflow

First published: Fri Oct 04 2019(Updated: )

A vulnerability was found in the Linux kernel's generic WiFi ESSID handling implementation. The flaw allows a system to join a wireless network where the ESSID is longer than the maximum length of 32 characters, which can cause the system to crash or execute code.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/kernel<0:2.6.32-754.28.1.el6
0:2.6.32-754.28.1.el6
redhat/kernel-rt<0:3.10.0-1062.12.1.rt56.1042.el7
0:3.10.0-1062.12.1.rt56.1042.el7
redhat/kernel-alt<0:4.14.0-115.17.1.el7a
0:4.14.0-115.17.1.el7a
redhat/kernel<0:3.10.0-1062.12.1.el7
0:3.10.0-1062.12.1.el7
redhat/kernel<0:3.10.0-327.85.1.el7
0:3.10.0-327.85.1.el7
redhat/kernel<0:3.10.0-514.73.1.el7
0:3.10.0-514.73.1.el7
redhat/kernel<0:3.10.0-693.64.1.el7
0:3.10.0-693.64.1.el7
redhat/kernel<0:3.10.0-862.48.1.el7
0:3.10.0-862.48.1.el7
redhat/kernel<0:3.10.0-957.46.1.el7
0:3.10.0-957.46.1.el7
redhat/kernel-rt<1:3.10.0-693.64.1.rt56.662.el6
1:3.10.0-693.64.1.rt56.662.el6
IBM Data Risk Manager<=2.0.6
Linux Kernel>=2.6.32<3.16.77
Linux Kernel>=3.17<4.4.198
Linux Kernel>=4.5<4.9.198
Linux Kernel>=4.10<4.14.151
Linux Kernel>=4.15<4.19.81
Linux Kernel>=4.20<5.3.8
Debian=8.0
Ubuntu=14.04
Ubuntu=16.04
Ubuntu=18.04
Ubuntu=19.04
SUSE Linux=15.1
debian/linux
5.10.223-1
5.10.234-1
6.1.123-1
6.1.128-1
6.12.12-1
6.12.17-1

Remedy

https://marc.info/?l=linux-wireless&m=157018270915487&w=2

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2019-17133?

    CVE-2019-17133 has been classified as a high severity vulnerability due to its potential to cause system crashes and arbitrary code execution.

  • How do I fix CVE-2019-17133?

    To fix CVE-2019-17133, you should update the Linux kernel to remedial versions which include the fix for this vulnerability.

  • Which Linux distributions are affected by CVE-2019-17133?

    CVE-2019-17133 affects various Linux distributions, including specific versions of Red Hat, Debian, and Ubuntu.

  • What impact does CVE-2019-17133 have on a system?

    CVE-2019-17133 can enable an attacker to crash the system or execute arbitrary code by exploiting the vulnerability in WiFi ESSID handling.

  • Is CVE-2019-17133 being actively exploited?

    There is no public evidence confirming that CVE-2019-17133 is actively being exploited in the wild, but it remains a critical vulnerability that should be addressed promptly.

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