7.5

CVE-2018-5732

A specially constructed response from a malicious server can cause a buffer overflow in dhclient

Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a response containing a specially constructed options section. Affects ISC DHCP versions 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Isc ≫ Dhcp Version >= 4.1.0 <= 4.1.2
Isc ≫ Dhcp Version >= 4.2.0 < 4.2.8
Isc ≫ Dhcp Version >= 4.3.0 < 4.3.6
Isc ≫ Dhcp Version 4.1-esv Update -
Isc ≫ Dhcp Version 4.1-esv Update r1
Isc ≫ Dhcp Version 4.1-esv Update r10
Isc ≫ Dhcp Version 4.1-esv Update r10b1
Isc ≫ Dhcp Version 4.1-esv Update r10rc1
Isc ≫ Dhcp Version 4.1-esv Update r11
Isc ≫ Dhcp Version 4.1-esv Update r11b1
Isc ≫ Dhcp Version 4.1-esv Update r11rc1
Isc ≫ Dhcp Version 4.1-esv Update r11rc2
Isc ≫ Dhcp Version 4.1-esv Update r12
Isc ≫ Dhcp Version 4.1-esv Update r12-p1
Isc ≫ Dhcp Version 4.1-esv Update r12b1
Isc ≫ Dhcp Version 4.1-esv Update r13
Isc ≫ Dhcp Version 4.1-esv Update r13b1
Isc ≫ Dhcp Version 4.1-esv Update r14
Isc ≫ Dhcp Version 4.1-esv Update r14b1
Isc ≫ Dhcp Version 4.1-esv Update r15
Isc ≫ Dhcp Version 4.1-esv Update r2
Isc ≫ Dhcp Version 4.1-esv Update r3
Isc ≫ Dhcp Version 4.1-esv Update r3b1
Isc ≫ Dhcp Version 4.1-esv Update r4
Isc ≫ Dhcp Version 4.1-esv Update r5
Isc ≫ Dhcp Version 4.1-esv Update r5b1
Isc ≫ Dhcp Version 4.1-esv Update r5rc1
Isc ≫ Dhcp Version 4.1-esv Update r5rc2
Isc ≫ Dhcp Version 4.1-esv Update r6
Isc ≫ Dhcp Version 4.1-esv Update r7
Isc ≫ Dhcp Version 4.1-esv Update r8
Isc ≫ Dhcp Version 4.1-esv Update r8b1
Isc ≫ Dhcp Version 4.1-esv Update r8rc1
Isc ≫ Dhcp Version 4.1-esv Update r9
Isc ≫ Dhcp Version 4.1-esv Update r9b1
Isc ≫ Dhcp Version 4.1-esv Update r9rc1
Isc ≫ Dhcp Version 4.1.2 Update p1
Isc ≫ Dhcp Version 4.4.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 4.96% 0.911
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NIST 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
ISC 7.5 3.9 3.6
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

https://kb.isc.org/docs/aa-01565
Vendor Advisory