CVE-2019-20811 — Improper Cleanup on Thrown Exception in Kernel

CWE-460 — Improper Cleanup on Thrown Exception10 documents8 sources
Severity
5.5MEDIUMNVD
OSV4.7
EPSS
0.0%
top 91.80%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Linux KernelCanonical Ubuntu LinuxDebian Linux
Timeline
PublishedJun 3
Latest updateMay 24

Description

An issue was discovered in the Linux kernel before 5.0.6. In rx_queue_add_kobject() and netdev_queue_add_kobject() in net/core/net-sysfs.c, a reference count is mishandled, aka CID-a3e23f719f5c.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NExploitability: 1.8 | Impact: 3.6

Affected Packages3 packages

▶NVDlinux/linux_kernel< 5.0.6
▶Debianlinux/linux_kernel< 4.19.37-1+3
▶Ubuntulinux/linux_kernel< 4.4.0-190.220

Also affects: Debian Linux 8.0, 9.0, Ubuntu Linux 14.04, 16.04

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

4
GHSA
GHSA-9758-m2fm-98xg: An issue was discovered in the Linux kernel before 5↗2022-05-24
▶
OSV
linux, linux-aws, linux-kvm, linux-lts-xenial, linux-raspi2, linux-snapdragon vulnerabilities↗2020-09-24
▶
CVEList
CVE-2019-20811: An issue was discovered in the Linux kernel before 5↗2020-06-03
▶
OSV
CVE-2019-20811: An issue was discovered in the Linux kernel before 5↗2020-06-03
▶

📋Vendor Advisories

3
Ubuntu
Linux kernel vulnerabilities↗2020-09-24
▶
Red Hat
kernel: net-sysfs: *_queue_add_kobject refcount issue↗2019-03-19
▶
Debian
CVE-2019-20811: linux - An issue was discovered in the Linux kernel before 5.0.6. In rx_queue_add_kobjec...↗2019
▶

💬Community

2
Bugzilla
CVE-2019-20811 kernel: net-sysfs: *_queue_add_kobject refcount issue↗2020-06-11
▶
Bugzilla
CVE-2019-20811 kernel: net-sysfs: *_queue_add_kobject refcount issue [fedora-all]↗2020-06-11
▶
CVE-2019-20811 — Improper Cleanup on Thrown Exception | cvebase