CVE-2019-17133

kernel: buffer overflow in cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

En el kernel de Linux versiones hasta 5.3.2, la función cfg80211_mgd_wext_giwessid en el archivo net/wireless/wext-sme.c no rechaza un SSID IE largo, conllevando a un Desbordamiento de Búfer.

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.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-10-04 CVE Reserved
2019-10-04 CVE Published
2024-08-05 CVE Updated
2024-09-27 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CAPEC

References (26)

URL	Tag	Source
http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html	Mailing List
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html	Mailing List
https://seclists.org/bugtraq/2019/Nov/11	Mailing List
https://security.netapp.com/advisory/ntap-20191031-0005	Third Party Advisory
https://www.oracle.com/security-alerts/cpuApr2021.html	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://marc.info/?l=linux-wireless&m=157018270915487&w=2	2022-11-03

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00064.html	2022-11-03
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html	2022-11-03
https://access.redhat.com/errata/RHSA-2020:0174	2022-11-03
https://access.redhat.com/errata/RHSA-2020:0374	2022-11-03
https://access.redhat.com/errata/RHSA-2020:0375	2022-11-03
https://access.redhat.com/errata/RHSA-2020:0543	2022-11-03
https://access.redhat.com/errata/RHSA-2020:0592	2022-11-03
https://access.redhat.com/errata/RHSA-2020:0609	2022-11-03
https://access.redhat.com/errata/RHSA-2020:0653	2022-11-03
https://access.redhat.com/errata/RHSA-2020:0661	2022-11-03
https://access.redhat.com/errata/RHSA-2020:0664	2022-11-03
https://access.redhat.com/errata/RHSA-2020:0790	2022-11-03
https://usn.ubuntu.com/4208-1	2022-11-03
https://usn.ubuntu.com/4210-1	2022-11-03
https://usn.ubuntu.com/4211-1	2022-11-03
https://usn.ubuntu.com/4211-2	2022-11-03
https://usn.ubuntu.com/4226-1	2022-11-03
https://access.redhat.com/security/cve/CVE-2019-17133	2020-03-11
https://bugzilla.redhat.com/show_bug.cgi?id=1771909	2020-03-11

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 2.6.32 < 3.16.77 Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.32 < 3.16.77"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 3.17 < 4.4.198 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.17 < 4.4.198"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.5 < 4.9.198 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.5 < 4.9.198"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.10 < 4.14.151 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 4.14.151"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.15 < 4.19.81 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 4.19.81"		-		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				>= 4.20 < 5.3.8 Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.3.8"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				19.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.04"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected