CVE-2019-19319
kernel: out-of-bounds write in ext4_xattr_set_entry in fs/ext4/xattr.c
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
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.
En el kernel de Linux anterior a la versión 5.2, una operación setxattr, posterior al montaje de una imagen ext4 especialmente diseñada, puede causar un acceso de escritura fuera de límites debido a un uso de la memoria previamente liberada de la función ext4_xattr_set_entry en el archivo fs/ext4/xattr.c cuando se usa un valor grande de old_size en una llamada memset también conocido como CID-345c0dbf3a30.
An out-of-bounds write flaw was found in the Linux kernel’s Ext4 FileSystem in the way it uses a crafted ext4 image. This flaw allows a local user with physical access to crash the system or potentially escalate their privileges on the system.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-11-26 CVE Reserved
- 2019-11-27 CVE Published
- 2023-04-01 EPSS Updated
- 2024-08-05 CVE Updated
- 2024-08-05 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-416: Use After Free
- CWE-787: Out-of-bounds Write
CAPEC
References (12)
| URL | Tag | Source |
|---|---|---|
| https://bugzilla.suse.com/show_bug.cgi?id=1158021 | X_refsource_misc | |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=345c0dbf3a30 | X_refsource_confirm | |
| https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html | Mailing List |
|
| https://security.netapp.com/advisory/ntap-20200103-0001 | Third Party Advisory |
|
| URL | Date | SRC |
|---|---|---|
| https://github.com/bobfuzzer/CVE/tree/master/CVE-2019-19319 | 2024-08-05 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html | 2021-02-09 | |
| https://usn.ubuntu.com/4391-1 | 2021-02-09 | |
| https://www.debian.org/security/2020/dsa-4698 | 2021-02-09 | |
| https://access.redhat.com/security/cve/CVE-2019-19319 | 2020-11-04 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1784130 | 2020-11-04 |
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" | 5.0.21 Search vendor "Linux" for product "Linux Kernel" and version "5.0.21" | - |
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
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0" | - |
Affected
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| Redhat Search vendor "Redhat" | Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux" | 8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0" | - |
Affected
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