CVE-2019-17133

CRITICAL
9.8
CVSS Score
Published: October 4, 2019 at 11:57 AM UTC
Updated: June 17, 2026 at 02:23 AM UTC
4 products affected across 4 vendorsLinux KernelDebian LinuxUbuntu Linux

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Severity
CRITICAL9.8
Exploit prediction
EPSS 7%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.6.32 ≤ v < 3.16.773.17 ≤ v < 4.4.1984.10 ≤ v < 4.14.1514.15 ≤ v < 4.19.814.20 ≤ v < 5.3.84.5 ≤ v < 4.9.198
Affected range stops below 3.16.77, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.14.151, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.81, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.198, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.198, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.3.8, so it looks safe — our inference, not a vendor statement

References (24)

Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00064.html
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0174
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0374
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0375
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0543
Vendor Advisoryx_refsource_REDHATThird Party Advisory
https://access.redhat.com/errata/RHSA-2020:0592

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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