Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).

CVE-2018-5333 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference22 documents9 sources
Severity
5.5MEDIUMNVD
OSV7.8
EPSS
2.8%
top 13.87%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
4
Linux KernelDebian LinuxCanonical Ubuntu Linux+1 more
Timeline
PublishedJan 11
Latest updateMay 13

Description

In the Linux kernel through 4.14.13, the rds_cmsg_atomic function in net/rds/rdma.c mishandles cases where page pinning fails or an invalid address is supplied, leading to an rds_atomic_free_op NULL pointer dereference.

CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶Debianlinux/linux_kernel< 4.14.17-1+3
▶Ubuntulinux/linux_kernel< 3.13.0-142.191+1
▶NVDlinux/linux_kernel4.14.13
▶debiandebian/linux< linux 4.14.17-1 (bookworm)

Also affects: Debian Linux 7.0, 8.0, Ubuntu Linux 12.04, 14.04, 16.04, 17.10

Patches

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

🔴Vulnerability Details

7
GHSA
GHSA-fgqv-475c-x2p6: In the Linux kernel through 4↗2022-05-13
▶
OSV
linux-azure vulnerabilities↗2018-04-24
▶
OSV
linux-lts-xenial, linux-aws vulnerabilities↗2018-04-05
▶
OSV
linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities↗2018-04-04
▶
OSV
linux-hwe, linux-gcp, linux-oem vulnerabilities↗2018-04-03
▶

💥Exploits & PoCs

2
Exploit-DB
Reliable Datagram Sockets (RDS) - rds_atomic_free_op NULL pointer dereference Privilege Escalation (Metasploit)↗2020-01-23
▶
Metasploit
Reliable Datagram Sockets (RDS) rds_atomic_free_op NULL pointer dereference Privilege Escalation↗
▶

📋Vendor Advisories

10
Ubuntu
Linux kernel (Azure) vulnerabilities↗2018-04-24
▶
Ubuntu
Linux kernel (Xenial HWE) vulnerabilities↗2018-04-05
▶
Ubuntu
Linux kernel vulnerabilities↗2018-04-04
▶
Ubuntu
Linux kernel (Raspberry Pi 2) vulnerabilities↗2018-04-04
▶
Ubuntu
Linux kernel vulnerabilities↗2018-04-03
▶

💬Community

2
Bugzilla
CVE-2018-5332 CVE-2018-5333 kernel: various flaws [fedora-all]↗2018-01-12
▶
Bugzilla
CVE-2018-5333 kernel: Null pointer dereference in rds_atomic_free_op() allowing denial-of-service↗2018-01-12
▶