Vulnerability Name:

CVE-2020-17438 (CCN-192755)

Assigned:2020-12-08
Published:2020-12-08
Updated:2020-12-15
Summary:An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. The code that reassembles fragmented packets fails to properly validate the total length of an incoming packet specified in its IP header, as well as the fragmentation offset value specified in the IP header. By crafting a packet with specific values of the IP header length and the fragmentation offset, attackers can write into the .bss section of the program (past the statically allocated buffer that is used for storing the fragmented data) and cause a denial of service in uip_reass() in uip.c, or possibly execute arbitrary code on some target architectures.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.6 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
7.0 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H)
6.2 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): Low
Integrity (I): Low
Availibility (A): High
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.6 Medium (CCN CVSS v2 Vector: AV:N/AC:H/Au:N/C:P/I:P/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): High
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Gain Access
References:Source: MITRE
Type: CNA
CVE-2020-17438

Source: CCN
Type: US-CERT VU#815128
Embedded TCP/IP stacks have memory corruption vulnerabilities

Source: XF
Type: UNKNOWN
tcpipstacks-cve202017438-code-exec(192755)

Source: CCN
Type: uip GIT Repository
uIP

Source: CCN
Type: open-iscsi GIT Repository
open-iscsi

Source: CCN
Type: ICSA-20-343-01
Multiple Embedded TCP/IP Stacks

Source: MISC
Type: Third Party Advisory, US Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01

Source: CCN
Type: Forescout Web site
AMNESIA:33

Source: MISC
Type: Third Party Advisory, US Government Resource
https://www.kb.cert.org/vuls/id/815128

Vulnerable Configuration:Configuration 1:
  • cpe:/a:uip_project:uip:1.0:*:*:*:*:*:*:*
  • AND
  • cpe:/o:contiki-os:contiki:3.0:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:7532
    P
    iscsiuio-0.7.8.6-150500.44.1 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:94584
    P
    iscsiuio-0.7.8.6-150400.37.6 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:2954
    P
    iscsiuio-0.7.8.6-150400.37.6 on GA media (Moderate)
    2022-06-22
    oval:org.opensuse.security:def:85
    P
    iscsiuio-0.7.8.6-30.1 on GA media (Moderate)
    2022-06-13
    oval:org.opensuse.security:def:102283
    P
    Security update for php7 (Important)
    2022-03-15
    oval:org.opensuse.security:def:99437
    P
    (Important)
    2021-12-06
    oval:org.opensuse.security:def:100861
    P
    iscsiuio-0.7.8.6-30.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:62103
    P
    iscsiuio-0.7.8.6-30.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:1014
    P
    iscsiuio-0.7.8.6-30.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:71844
    P
    iscsiuio-0.7.8.6-30.1 on GA media (Moderate)
    2021-08-09
    oval:org.opensuse.security:def:99636
    P
    (Moderate)
    2021-05-26
    oval:org.opensuse.security:def:99941
    P
    (Moderate)
    2021-05-05
    oval:org.opensuse.security:def:9687
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:6443
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:96839
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:92288
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:69444
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:8932
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:98848
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:93038
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:70378
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:10058
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:6468
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:108949
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:92487
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:69628
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:9304
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:99043
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:93191
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:91898
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:67532
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:10238
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:8559
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:92686
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:69827
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:9488
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:99238
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:95570
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:92093
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:67557
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:8737
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:92885
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:70198
    P
    Security update for open-iscsi (Important)
    2021-04-13
    oval:org.opensuse.security:def:60464
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:88252
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:127223
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:52013
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:34030
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:5963
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:88569
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:59595
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:34641
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:125658
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:89250
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:24025
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:59853
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:126826
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:89508
    P
    Security update for open-iscsi (Important)
    2021-03-01
    oval:org.opensuse.security:def:33772
    P
    Security update for open-iscsi (Important)
    2021-03-01
    BACK
    uip_project uip 1.0
    contiki-os contiki 3.0