CVE-2019-3837

CWE-362 — Race ConditionCWE-401 — Memory LeakCWE-6637 documents7 sources
Severity
6.1MEDIUM
EPSS
0.1%
top 74.05%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
THE Linux Foundation KernelLinux Linux KernelRedhat Enterprise Linux
Timeline
PublishedApr 11
Latest updateMay 13

Description

It was found that the net_dma code in tcp_recvmsg() in the 2.6.32 kernel as shipped in RHEL6 is thread-unsafe. So an unprivileged multi-threaded userspace application calling recvmsg() for the same network socket in parallel executed on ioatdma-enabled hardware with net_dma enabled can leak the memory, crash the host leading to a denial-of-service or cause a random memory corruption.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:HExploitability: 1.8 | Impact: 4.2

Affected Packages3 packages

▶CVEListV5the_linux_foundation/kernel2.6.32 as shipped in rhel-6
▶NVDlinux/linux_kernel2.6.32
▶Debianlinux< 3.13.4-1+3

Also affects: Enterprise Linux 6.0

Patches

Patch: bugzilla.redhat.com ↗Patch: bugzilla.redhat.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-hx7v-466q-33qj: It was found that the net_dma code in tcp_recvmsg() in the 2↗2022-05-13
▶
CVEList
CVE-2019-3837: It was found that the net_dma code in tcp_recvmsg() in the 2↗2019-04-11
▶
OSV
CVE-2019-3837: It was found that the net_dma code in tcp_recvmsg() in the 2↗2019-04-11
▶

📋Vendor Advisories

2
Red Hat
kernel: memory leak in tcp_recvmsg() with NET_DMA↗2019-04-03
▶
Debian
CVE-2019-3837: linux - It was found that the net_dma code in tcp_recvmsg() in the 2.6.32 kernel as ship...↗2019
▶

💬Community

1
Bugzilla
CVE-2019-3837 kernel: memory leak in tcp_recvmsg() with NET_DMA↗2019-02-18
▶
CVE-2019-3837 (MEDIUM CVSS 6.1) | It was found that the net_dma code | cvebase.io