7.8

CVE-2019-15918: canonical ubuntu_linux Out-of-bounds Read

Modified
AliasesUBUNTU-CVE-2019-15918DEBIAN-CVE-2019-15918
Published 04-09-2019Last modified 05-08-2024

Vulnerability summary

CVE-2019-15918 is a high (CVSS 7.8) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 0.60% chance of exploitation in the next 30 days, higher than 48.8% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (NVD)
EPSS score
0.60%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2 · Related 2
USN-4162-1USN-4162-2

Timeline

  1. 04-09-2019
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the Linux kernel before 5.0.10. SMB2_negotiate in fs/cifs/smb2pdu.c has an out-of-bounds read because data structures are incompletely updated after a change from smb30 to smb21.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

0.60%

Chance of exploitation in the next 30 days

Percentile

49%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.60% 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

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu23 products
  • linux< 4.15.0-66.75
  • linux-aws< 4.15.0-1052.54
  • linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
  • linux-aws-hwe< 4.15.0-1052.54~16.04.1
  • linux-azure< 4.15.0-1061.66~14.04.1 | < 4.15.0-1061.66 | < 5.0.0-1014.14~18.04.1
Canonical1 product
Debian1 product
  • linux< 5.2.6-1
Linux1 product
  • linux_kernel≥ 4.13.5, < 4.14.166 | ≥ 4.15, < 4.19.73 | ≥ 4.20, < 5.0.10

4 vendors · 26 products

References

11 links
Show all 11 references