Vulnerability Name:

CVE-2020-17437 (CCN-192754)

Assigned:2020-12-08
Published:2020-12-08
Updated:2022-08-08
Summary:An issue was discovered in uIP 1.0, as used in Contiki 3.0 and other products. When the Urgent flag is set in a TCP packet, and the stack is configured to ignore the urgent data, the stack attempts to use the value of the Urgent pointer bytes to separate the Urgent data from the normal data, by calculating the offset at which the normal data should be present in the global buffer. However, the length of this offset is not checked; therefore, for large values of the Urgent pointer bytes, the data pointer can point to memory that is way beyond the data buffer in uip_process in uip.c.
CVSS v3 Severity:8.2 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H)
7.1 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C)
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): Low
Integrity (I): None
Availibility (A): High
8.2 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H)
7.1 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C)
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): Low
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:6.4 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Partial
8.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-787
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2020-17437

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

Source: CONFIRM
Type: Patch, Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-541018.pdf

Source: XF
Type: UNKNOWN
tcpipstacks-cve202017437-dos(192754)

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:*:*:*:*:*:*:*:* (Version <= 1.0)
  • AND
  • cpe:/o:contiki-os:contiki:*:*:*:*:*:*:*:* (Version <= 3.0)

    • Configuration 2:
  • cpe:/a:open-iscsi_project:open-iscsi:*:*:*:*:*:*:*:* (Version <= 2.1.7)

    • Configuration 3:
  • cpe:/o:siemens:sentron_3va_com100_firmware:*:*:*:*:*:*:*:* (Version < 4.4.1)
  • AND
  • cpe:/h:siemens:sentron_3va_com100:-:*:*:*:*:*:*:*

    • Configuration 4:
  • cpe:/o:siemens:sentron_3va_com800_firmware:*:*:*:*:*:*:*:* (Version < 4.4.1)
  • AND
  • cpe:/h:siemens:sentron_3va_com800:-:*:*:*:*:*:*:*

    • Configuration 5:
  • cpe:/o:siemens:sentron_3va_dsp800_firmware:*:*:*:*:*:*:*:* (Version < 4.0)
  • AND
  • cpe:/h:siemens:sentron_3va_dsp800:-:*:*:*:*:*:*:*

    • Configuration 6:
  • cpe:/o:siemens:sentron_pac2200_clp_firmware:-:*:*:*:*:*:*:*
  • AND
  • cpe:/h:siemens:sentron_pac2200_clp:-:*:*:*:*:*:*:*

    • Configuration 7:
  • cpe:/o:siemens:sentron_pac2200_firmware:*:*:*:*:*:*:*:* (Version < 3.2.2)
  • AND
  • cpe:/h:siemens:sentron_pac2200:-:*:*:*:*:*:*:*

    • Configuration 8:
  • cpe:/o:siemens:sentron_pac3200_firmware:*:*:*:*:*:*:*:* (Version < 2.4.7)
  • AND
  • cpe:/h:siemens:sentron_pac3200:-:*:*:*:*:*:*:*

    • Configuration 9:
  • cpe:/o:siemens:sentron_pac3200t_firmware:*:*:*:*:*:*:*:* (Version < 3.2.2)
  • AND
  • cpe:/h:siemens:sentron_pac3200t:-:*:*:*:*:*:*:*

    • Configuration 10:
  • cpe:/o:siemens:sentron_pac3220_firmware:*:*:*:*:*:*:*:* (Version < 3.2.0)
  • AND
  • cpe:/h:siemens:sentron_pac3220:-:*:*:*:*:*:*:*

    • Configuration 11:
  • cpe:/o:siemens:sentron_pac4200_firmware:*:*:*:*:*:*:*:* (Version < 2.3.0)
  • AND
  • cpe:/h:siemens:sentron_pac4200:-:*:*:*:*:*:*:*

    • * 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:2954
    P
    		iscsiuio-0.7.8.6-150400.37.6 on GA media (Moderate)
    2022-06-22
    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: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:112444
    P
    		iscsiuio-0.7.8.6-80.2 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:99437
    P
    		 (Important)
    2021-12-06
    oval:org.opensuse.security:def:105950
    P
    		iscsiuio-0.7.8.6-80.2 on GA media (Moderate)
    2021-10-01
    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: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:99636
    P
    		 (Moderate)
    2021-05-26
    oval:org.opensuse.security:def:99941
    P
    		 (Moderate)
    2021-05-05
    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:96839
    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: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: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: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
    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
    BACK
    uip_project uip *
    contiki-os contiki *
    open-iscsi_project open-iscsi *
    siemens sentron 3va com100 firmware *
    siemens sentron 3va com100 -
    siemens sentron 3va com800 firmware *
    siemens sentron 3va com800 -
    siemens sentron 3va dsp800 firmware *
    siemens sentron 3va dsp800 -
    siemens sentron pac2200 clp firmware -
    siemens sentron pac2200 clp -
    siemens sentron pac2200 firmware *
    siemens sentron pac2200 -
    siemens sentron pac3200 firmware *
    siemens sentron pac3200 -
    siemens sentron pac3200t firmware *
    siemens sentron pac3200t -
    siemens sentron pac3220 firmware *
    siemens sentron pac3220 -
    siemens sentron pac4200 firmware *
    siemens sentron pac4200 -