9.8
CRITICAL
CVE-2021-29998
VxWorks DHCP Client Heap Overflow Vulnerability
Description

An issue was discovered in Wind River VxWorks before 6.5. There is a possible heap overflow in dhcp client.

INFO

Published Date :

April 13, 2021, 5:15 p.m.

Last Modified :

Nov. 21, 2024, 6:02 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-29998 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Siemens scalance_x408_firmware
2 Siemens scalance_x300_firmware
3 Siemens scalance_x201-3p_irt_firmware
4 Siemens scalance_x201-3p_irt_pro_firmware
5 Siemens scalance_x202-2p_irt_firmware
6 Siemens scalance_x202-2p_irt_pro_firmware
7 Siemens scalance_xf201-3p_irt_firmware
8 Siemens scalance_xf202-2p_irt_firmware
9 Siemens scalance_xf204-2ba_irt_firmware
10 Siemens ruggedcom_win_subscriber_station_firmware
11 Siemens scalance_x200-4_p_irt_firmware
12 Siemens scalance_x202-2_irt_firmware
13 Siemens scalance_x204_irt_firmware
14 Siemens scalance_x204_irt_pro_firmware
15 Siemens scalance_x204-2_firmware
16 Siemens scalance_x204-2fm_firmware
17 Siemens scalance_x204-2ld_firmware
18 Siemens scalance_x204-2ld_ts_firmware
19 Siemens scalance_x204-2ts_firmware
20 Siemens scalance_x206-1_firmware
21 Siemens scalance_x206-1ld_firmware
22 Siemens scalance_x208_firmware
23 Siemens scalance_x208_pro_firmware
24 Siemens scalance_x212-2_firmware
25 Siemens scalance_x212-2ld_firmware
26 Siemens scalance_x216_firmware
27 Siemens scalance_x224_firmware
28 Siemens scalance_xf204_firmware
29 Siemens scalance_xf204_irt_firmware
30 Siemens scalance_xf204-2_firmware
31 Siemens scalance_xf206-1_firmware
32 Siemens scalance_xf208_firmware
33 Siemens simatic_rf_181_eip_firmware
34 Siemens simatic_rf_182c_firmware
35 Siemens sinamics_perfect_harmony_gh180_firmware
36 Siemens scalance_x201-3p_irt
37 Siemens scalance_x202-2p_irt
38 Siemens scalance_x200-4_p_irt
39 Siemens scalance_x201-3p_irt_pro
40 Siemens scalance_x202-2_irt
41 Siemens scalance_x202-2p_irt_pro
42 Siemens scalance_x204_irt
43 Siemens scalance_x204_irt_pro
44 Siemens scalance_x204-2fm
45 Siemens scalance_x204-2ld
46 Siemens scalance_x204-2ld_ts
47 Siemens scalance_x204-2ts
48 Siemens scalance_x206-1
49 Siemens scalance_x206-1ld
50 Siemens scalance_x208
51 Siemens scalance_x212-2
52 Siemens scalance_x212-2ld
53 Siemens scalance_x216
54 Siemens scalance_x224
55 Siemens scalance_xf201-3p_irt
56 Siemens scalance_xf202-2p_irt
57 Siemens scalance_xf204
58 Siemens scalance_xf204_irt
59 Siemens scalance_xf204-2ba_irt
60 Siemens scalance_xf206-1
61 Siemens scalance_xf208
62 Siemens scalance_x300
63 Siemens scalance_x408
64 Siemens sinamics_perfect_harmony_gh180
65 Siemens scalance_xf204-2
66 Siemens ruggedcom_win_subscriber_station
67 Siemens scalance_x204-2
68 Siemens scalance_x208_pro
69 Siemens simatic_rf_181_eip
70 Siemens simatic_rf_182c
1 Windriver vxworks
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-29998.

URL Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-560465.pdf Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-910883.pdf Third Party Advisory
https://support2.windriver.com/index.php?page=security-notices Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-194-12 Third Party Advisory US Government Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-560465.pdf Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-910883.pdf Third Party Advisory
https://support2.windriver.com/index.php?page=security-notices Vendor Advisory
https://us-cert.cisa.gov/ics/advisories/icsa-21-194-12 Third Party Advisory US Government Resource

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-29998 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-29998 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-560465.pdf
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-910883.pdf
    Added Reference https://support2.windriver.com/index.php?page=security-notices
    Added Reference https://us-cert.cisa.gov/ics/advisories/icsa-21-194-12
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Oct. 05, 2022

    Action Type Old Value New Value
    Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-910883.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-910883.pdf Third Party Advisory
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:sinamics_perfect_harmony_gh180_firmware:*:*:*:*:*:*:*:* versions from (including) 2015 up to (excluding) 2022 OR cpe:2.3:h:siemens:sinamics_perfect_harmony_gh180:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 12, 2022

    Action Type Old Value New Value
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-910883.pdf [No Types Assigned]
  • Modified Analysis by [email protected]

    Apr. 22, 2022

    Action Type Old Value New Value
    Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-560465.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-560465.pdf Third Party Advisory
    Changed Reference Type https://us-cert.cisa.gov/ics/advisories/icsa-21-194-12 No Types Assigned https://us-cert.cisa.gov/ics/advisories/icsa-21-194-12 Third Party Advisory, US Government Resource
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:ruggedcom_win_subscriber_station_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:ruggedcom_win_subscriber_station:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x200-4_p_irt_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x200-4_p_irt:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x201-3p_irt_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x201-3p_irt:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x201-3p_irt_pro_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x201-3p_irt_pro:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x202-2_irt_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x202-2_irt:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x202-2p_irt_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x202-2p_irt:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x202-2p_irt_pro_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x202-2p_irt_pro:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x204_irt_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x204_irt:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x204_irt_pro_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x204_irt_pro:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x204-2_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x204-2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x204-2fm_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x204-2fm:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x204-2ld_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x204-2ld:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x204-2ld_ts_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x204-2ld_ts:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x204-2ts_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x204-2ts:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x206-1_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x206-1:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x206-1ld_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x206-1ld:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x208_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x208:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x208_pro_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x208_pro:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x212-2_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x212-2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x212-2ld_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x212-2ld:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x216_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x216:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x224_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x224:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x300_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x300:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_x408_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_x408:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xf201-3p_irt_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_xf201-3p_irt:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xf202-2p_irt_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_xf202-2p_irt:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xf204_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_xf204:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xf204_irt_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_xf204_irt:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xf204-2_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_xf204-2:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xf204-2ba_irt_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_xf204-2ba_irt:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xf206-1_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_xf206-1:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:scalance_xf208_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:scalance_xf208:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_rf_181_eip_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_rf_181_eip:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:siemens:simatic_rf_182c_firmware:*:*:*:*:*:*:*:* OR cpe:2.3:h:siemens:simatic_rf_182c:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 30, 2021

    Action Type Old Value New Value
    Added Reference https://us-cert.cisa.gov/ics/advisories/icsa-21-194-12 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 13, 2021

    Action Type Old Value New Value
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-560465.pdf [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 16, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://support2.windriver.com/index.php?page=security-notices No Types Assigned https://support2.windriver.com/index.php?page=security-notices Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:o:windriver:vxworks:*:*:*:*:*:*:*:* versions up to (excluding) 6.5
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-29998 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-29998 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.41 }} 0.07%

score

0.73547

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability