7.5

CVE-2019-6470: isc dhcpd

CVSS: 7.5v3.1HighAnalyzed
AliasesALPINE-CVE-2019-6470SUSE-SU-2019:2657-1SUSE-SU-2019:2727-1
Published 01-11-2019Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2019-6470 is a high (CVSS 7.5) vulnerability in isc dhcpd. EPSS estimates a 8.81% chance of exploitation in the next 30 days, higher than 95.1% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
42/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
8.81%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 1 · Related 3
OPENSUSE-SU-2024:10715-1CGA-84R3-73JG-5377CGA-H2XQ-WVPH-8V9M

Timeline

  1. 01-11-2019
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

There had existed in one of the ISC BIND libraries a bug in a function that was used by dhcpd when operating in DHCPv6 mode. There was also a bug in dhcpd relating to the use of this function per its documentation, but the bug in the library function prevented this from causing any harm. All releases of dhcpd from ISC contain copies of this, and other, BIND libraries in combinations that have been tested prior to release and are known to not present issues like this. Some third-party packagers of ISC software have modified the dhcpd source, BIND source, or version matchup in ways that create the crash potential. Based on reports available to ISC, the crash probability is large and no analysis has been done on how, or even if, the probability can be manipulated by an attacker. Affects: Builds of dhcpd versions prior to version 4.4.1 when using BIND versions 9.11.2 or later, or BIND versions with specific bug fixes backported to them. ISC does not have access to comprehensive version lists for all repackagings of dhcpd that are vulnerable. In particular, builds from other vendors may also be affected. Operators are advised to consult their vendor documentation.

CVSS metrics

9 scores · 8 sources · 3 versions

EPSS trend

Probability

8.81%

Chance of exploitation in the next 30 days

Percentile

95%

Versus all other CVEs

30-day change

0.00 pp

From 8.81% on 18-09-2026

18-09-202618-10-2026
EPSS score
8.81%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (bugs.debian.org)

    Maturity: unknown

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Redhat31 products
Suse11 products
  • dhcp&distro=SUSE Linux Enterprise Desktop 12 SP4< 4.3.3-10.19.1
  • dhcp&distro=SUSE Linux Enterprise Module for Basesystem 15< 4.3.5-6.3.1
  • dhcp&distro=SUSE Linux Enterprise Module for Basesystem 15 SP1< 4.3.5-6.3.1
  • dhcp&distro=SUSE Linux Enterprise Module for Server Applications 15< 4.3.5-6.3.1
  • dhcp&distro=SUSE Linux Enterprise Module for Server Applications 15 SP1< 4.3.5-6.3.1
Opensuse3 products
  • leapEOL15.0 | 15.1
  • dhcp&distro=openSUSE Leap 15.0< 4.3.5-lp150.5.3.1
  • dhcp&distro=openSUSE Leap 15.1< 4.3.5-lp151.6.3.1
Alpine1 product
  • dhcp< 4.4.1-r0
Chainguard1 product
  • bindAll versions (No fix recorded)
Debian1 product
  • isc-dhcp< 4.4.1-2
Isc1 product
Multiple, non-isc1 product
  • dhcpdbuilds not wholly from ISC source < 4.4.1
Ubuntu1 product
  • isc-dhcp< 4.3.5-3ubuntu7.1
Wolfi1 product
  • bindAll versions (No fix recorded)

10 vendors · 52 products

References

34 links
Show all 34 references