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Fencer Intel
medium 5.7

CVE-2012-3570 json

Buffer overflow in ISC DHCP 4.2.x before 4.2.4-P1, when DHCPv6 mode is enabled, allows remote attackers to cause a denial of service (segme…

published 2012-07-25 14 y ago modified 2026-06-16 4 mo ago also EUVD-2012-3517

cvss
5.7
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

Buffer overflow in ISC DHCP 4.2.x before 4.2.4-P1, when DHCPv6 mode is enabled, allows remote attackers to cause a denial of service (segmentation fault and daemon exit) via a crafted client identifier parameter.

Patch / fix

  • isc-dhcp Debian 13, Debian 12 4.2.4-2

debian advisories DEBIAN-CVE-2012-3570

  • dhcp openSUSE Tumbleweed 4.3.3.P1-3.1

opensuse advisories openSUSE-SU-2024:10358-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-3570 updated cvss 3.3

dhcp: DoS in DHCPv6 due to error in handling malformed client identifiers

  • Red Hat Enterprise Linux 5 dhcp Red Hat Enterprise Linux 6 dhcp, dhclient, dhcp-common
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.57% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.7 AV:A/AC:M/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.