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CVE-2019-17133

CRITICALCVSS 9.8/10EPSS 6.65%

Last modified

CVE-2019-17133 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In the Linux kernel through 5.3.2, cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c does not reject a long SSID IE, leading to a Buffer Overflow.. EPSS estimates a 6.65% chance of exploitation in the next 30 days.

Description

In the Linux kernel through 5.3.2, cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c does not reject a long SSID IE, leading to a Buffer Overflow.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
6.65%

93.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
LinuxLinux Kernel>= 2.6.32, < 3.16.77
LinuxLinux Kernel>= 3.17, < 4.4.198
LinuxLinux Kernel>= 4.5, < 4.9.198
LinuxLinux Kernel>= 4.10, < 4.14.151
LinuxLinux Kernel>= 4.15, < 4.19.81
LinuxLinux Kernel>= 4.20, < 5.3.8
DebianDebian Linux8.0
CanonicalUbuntu Linux14.04
CanonicalUbuntu Linux16.04
CanonicalUbuntu Linux18.04
CanonicalUbuntu Linux19.04
OpensuseLeap15.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-17133?
In the Linux kernel through 5.3.2, cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c does not reject a long SSID IE, leading to a Buffer Overflow.
How severe is CVE-2019-17133?
CVE-2019-17133 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 6.65% probability of exploitation in the next 30 days.
How do I fix CVE-2019-17133?
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.

Are you affected by CVE-2019-17133?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST