CVE-2019-16994 — Missing Release of Memory after Effective Lifetime in Kernel

CWE-401 — Missing Release of Memory after Effective LifetimeCWE-400 — Uncontrolled Resource ConsumptionCWE-772 — Missing Release of Resource after Effective Lifetime7 documents6 sources
Severity
4.7MEDIUMNVD
EPSS
0.1%
top 77.29%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Linux KernelDebian LinuxOpensuse Leap+1 more
Timeline
PublishedSep 30
Latest updateMay 24

Description

In the Linux kernel before 5.0, a memory leak exists in sit_init_net() in net/ipv6/sit.c when register_netdev() fails to register sitn->fb_tunnel_dev, which may cause denial of service, aka CID-07f12b26e21a.

CVSS vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.0 | Impact: 3.6

Affected Packages4 packages

▶Debianlinux/linux_kernel< 4.19.28-1+3
▶debiandebian/linux< linux 4.19.28-1 (bookworm)
▶NVDopensuse/leap15.1

Also affects: Enterprise Linux 7.0

Patches

Patch: git.kernel.org ↗Patch: github.com ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-j78w-mvwv-rwcf: In the Linux kernel before 5↗2022-05-24
▶
OSV
CVE-2019-16994: In the Linux kernel before 5↗2019-09-30
▶

📋Vendor Advisories

2
Red Hat
kernel: Memory leak in sit_init_net() in net/ipv6/sit.c↗2019-09-30
▶
Debian
CVE-2019-16994: linux - In the Linux kernel before 5.0, a memory leak exists in sit_init_net() in net/ip...↗2019
▶

💬Community

2
Bugzilla
CVE-2019-16994 kernel: Memory leak in sit_init_net() in net/ipv6/sit.c [fedora-all]↗2019-10-08
▶
Bugzilla
CVE-2019-16994 kernel: Memory leak in sit_init_net() in net/ipv6/sit.c↗2019-10-08
▶