5.5

CVE-2018-5333: canonical ubuntu_linux NULL Pointer Dereference

CVSS: 5.5v3.0MediumModified
AliasesUBUNTU-CVE-2018-5333DEBIAN-CVE-2018-5333
Published 11-01-2018Last modified 05-08-2024
Open JSON

Vulnerability summary

CVE-2018-5333 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 7.21% chance of exploitation in the next 30 days, higher than 94.2% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.0 (NVD)
EPSS score
7.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2exploit-database, metasploit

Advisory lineage

Upstream 0 · Downstream 19 · Related 16
DLA-1369-1DSA-4187-1OPENSUSE-SU-2024:10728-1OPENSUSE-SU-2024:13704-1RHSA-2018:0470SUSE-SU-2018:0383-1

Timeline

  1. 11-01-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

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 metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

7.21%

Chance of exploitation in the next 30 days

Percentile

94%

Versus all other CVEs

30-day change

0.00 pp

From 7.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
7.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

2 found
  • exploit-databaselocallinuxVerified

    Reliable Datagram Sockets (RDS) - rds_atomic_free_op NULL pointer dereference Privilege Escalation (Metasploit)

    Maturity: weaponized

  • MetasploitMetasploitremoteVerified

    Reliable Datagram Sockets (RDS) rds_atomic_free_op NULL pointer dereference Privilege Escalation

    exploit/linux/local/rds_atomic_free_op_null_pointer_deref_priv_esc

    Maturity: weaponized

Weaknesses

CWE · root cause

Affected systems

Ubuntu17 products
  • linux< 3.13.0-142.191 | < 4.4.0-119.143
  • linux-aws< 4.4.0-1016.16 | < 4.4.0-1054.63
  • linux-azure< 4.13.0-1014.17
  • linux-azure-fdeAll versions (No fix recorded)
  • linux-fips< 4.4.0-1008.10
Debian2 products
Canonical1 product
Linux1 product

4 vendors · 21 products

References

26 links
Show all 26 references