7.8

CVE-2019-18680: linux linux_kernel NULL Pointer Dereference

Modified
AliasesUBUNTU-CVE-2019-18680
Published 04-11-2019Last modified 05-08-2024

Vulnerability summary

CVE-2019-18680 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in linux linux_kernel. EPSS estimates a 3.64% chance of exploitation in the next 30 days, higher than 89.5% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v2.0 (NVD)
EPSS score
3.64%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference

Advisory lineage

Upstream 0 · Downstream 4 · Related 4
SUSE-SU-2019:2984-1SUSE-SU-2019:3379-1SUSE-SU-2020:2491-1SUSE-SU-2020:2497-1

Timeline

  1. 04-11-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the Linux kernel 4.4.x before 4.4.195. There is a NULL pointer dereference in rds_tcp_kill_sock() in net/rds/tcp.c that will cause denial of service, aka CID-91573ae4aed0.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

3.64%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

No change 0.00 pp

From 3.64% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (lkml.org)

    Maturity: unknown

  • referenceUnverified

    Exploit Reference (cdn.kernel.org)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu16 products
  • linux< 4.4.0-168.197
  • linux-aws< 4.4.0-1058.62 | < 4.4.0-1098.109
  • linux-azure-edgeAll versions (No fix recorded)
  • linux-azure-fdeAll versions (No fix recorded)
  • linux-fips< 4.4.0-1025.30 | All versions (No fix recorded)
Linux1 product

2 vendors · 17 products

References

7 links