7.5

CVE-2018-10548: canonical ubuntu_linux NULL Pointer Dereference

Modified
AliasesUBUNTU-CVE-2018-10548ALPINE-CVE-2018-10548
Published 29-04-2018Last modified 05-08-2024

Vulnerability summary

CVE-2018-10548 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 8.35% chance of exploitation in the next 30 days, higher than 94.9% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 8% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.0 (NVD)
EPSS score
8.35%
0%100%
Low · -0.16 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 9 · Related 4
DLA-1373-1DLA-1397-1DSA-4240-1MGASA-2018-0222RHSA-2019:2519SUSE-SU-2018:1176-1

Timeline

  1. 29-04-2018
    PublishedVulnerability first disclosed.
  2. 05-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in PHP before 5.6.36, 7.0.x before 7.0.30, 7.1.x before 7.1.17, and 7.2.x before 7.2.5. ext/ldap/ldap.c allows remote LDAP servers to cause a denial of service (NULL pointer dereference and application crash) because of mishandling of the ldap_get_dn return value.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

8.35%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

Decrease -0.16 pp

From 8.51% 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: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu3 products
  • php5< 5.5.9+dfsg-1ubuntu4.25
  • php7.0< 7.0.30-0ubuntu0.16.04.1
  • php7.2< 7.2.5-0ubuntu0.18.04.1
Alpine1 product
  • php7< 7.2.5-r0 | < 7.1.17-r0
Canonical1 product
Debian1 product
Netapp1 product
Php1 product
  • php< 5.6.36 | ≥ 7.0.0, < 7.0.30 | ≥ 7.1.0, < 7.1.17 | ≥ 7.2.0, < 7.2.5

6 vendors · 8 products

References

20 links
Show all 20 references