6.5
MEDIUM
CVE-2019-19319
Ext4 Linux Kernel Use-After-Free Slab Out-of-Bounds Write
Description

In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call, aka CID-345c0dbf3a30.

INFO

Published Date :

Nov. 27, 2019, 11:15 p.m.

Last Modified :

Nov. 21, 2024, 4:34 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.6
Affected Products

The following products are affected by CVE-2019-19319 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
1 Redhat enterprise_linux
1 Opensuse leap
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2019-19319.

URL Resource
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html Mailing List Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1158021
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=345c0dbf3a30
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319 Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
https://security.netapp.com/advisory/ntap-20200103-0001/ Third Party Advisory
https://usn.ubuntu.com/4391-1/
https://www.debian.org/security/2020/dsa-4698
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html Mailing List Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1158021
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=345c0dbf3a30
https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319 Exploit Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
https://security.netapp.com/advisory/ntap-20200103-0001/ Third Party Advisory
https://usn.ubuntu.com/4391-1/
https://www.debian.org/security/2020/dsa-4698

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2019-19319 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2019-19319 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
    Added Reference https://bugzilla.suse.com/show_bug.cgi?id=1158021
    Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=345c0dbf3a30
    Added Reference https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
    Added Reference https://security.netapp.com/advisory/ntap-20200103-0001/
    Added Reference https://usn.ubuntu.com/4391-1/
    Added Reference https://www.debian.org/security/2020/dsa-4698
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 09, 2021

    Action Type Old Value New Value
    Changed Description In the Linux kernel 5.0.21, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call. In the Linux kernel before 5.2, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call, aka CID-345c0dbf3a30.
    Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=345c0dbf3a30 [No Types Assigned]
    Added Reference https://bugzilla.suse.com/show_bug.cgi?id=1158021 [No Types Assigned]
  • CWE Remap by [email protected]

    Aug. 24, 2020

    Action Type Old Value New Value
    Changed CWE CWE-787 CWE-787 CWE-416
  • CVE Modified by [email protected]

    Jun. 22, 2020

    Action Type Old Value New Value
    Added Reference https://usn.ubuntu.com/4391-1/ [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 10, 2020

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2020/dsa-4698 [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 10, 2020

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html [No Types Assigned]
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jun. 10, 2020

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html [No Types Assigned]
  • Modified Analysis by [email protected]

    May. 26, 2020

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:P/I:P/A:P)
    Removed CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added CVSS V3.1 NIST AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html No Types Assigned http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html Mailing List, Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20200103-0001/ No Types Assigned https://security.netapp.com/advisory/ntap-20200103-0001/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Mar. 13, 2020

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 03, 2020

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20200103-0001/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 09, 2019

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319 No Types Assigned https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319 Exploit, Third Party Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.0.21:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2019-19319 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2019-19319 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.05 }} -0.05%

score

0.21640

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability