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

Critical severity · published Oct 4, 2019

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

9.8

CVSS

6.7%

EPSS

On KEV

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.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

High

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)6.7% · higher than 94% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Kernel · Linux

2.6.32 before 3.16.77; 3.17 before 4.4.198; 4.5 before 4.9.198; 4.10 before 4.14.151; 4.15 before 4.19.81; 4.20 before 5.3.8 · source: NVD

Debian Linux · Debian

8.0 · source: NVD

Leap · Opensuse

15.1 · source: NVD

Ubuntu Linux · Canonical

14.04; 16.04; 18.04; 19.04 · source: NVD

Affected product

Kernel

Linux

All Kernel CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2019-17133

CVE.org

https://www.cve.org/CVERecord?id=CVE-2019-17133

Mailing List

http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00064.html

Mailing List

http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html

Third Party Advisory

http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html

Third Party Advisory

https://access.redhat.com/errata/RHSA-2020:0174

Third Party Advisory

https://access.redhat.com/errata/RHSA-2020:0374

Third Party Advisory

https://access.redhat.com/errata/RHSA-2020:0375