ICSA-21-012-03: Siemens JT2Go and Teamcenter Visualization (Update B)
CISA advisory · released 2021-01-12
Source record Collected from CISA's CSAF advisory feed
- Distribution label in the document: TLP:WHITE
- Revision 3, 2021-05-27 (final)
CISA's summary
Risk evaluation: Successful exploitation of these vulnerabilities could lead to arbitrary code execution.
Products, as the advisory lists them
| Vendor | Product | Version |
|---|---|---|
| Siemens | JT2Go | < 13.1.0 |
| Siemens | Teamcenter Visualization | < 13.1.0 |
| Siemens | JT2Go | 13.1.0 (Only affected by CVE-2020-26989 CVE-2020-26990 CVE-2020-26991) |
| Siemens | Teamcenter Visualization | 13.1.0 (Only affected by CVE-2020-26989 CVE-2020-26990 CVE-2020-26991) |
DeSpy has not checked any unit, hardware revision or firmware.
Vulnerabilities in this advisory
- CVE-2020-26980 · CWE-843
Affected applications lack proper validation of user-supplied data when parsing JT files. A crafted JT file can trigger a type of confusion condition. An attacker can leverage this vulnerability to execute code in the context of the current process. CVE-2020-26980 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26981 · CWE-611
When opening a specially crafted XML file, the application could disclose arbitrary files to remote attackers. This is because of the passing of specially crafted content to the underlying XML parser without taking proper restrictions such as prohibiting an external DTD. CVE-2020-26981 has been assigned to this vulnerability. A CVSS v3 base score of 5.6 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:L).
- CVE-2020-26982 · CWE-787
Affected applications lack proper validation of user-supplied data when parsing CG4 and CGM files. This could result in an out-of-bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26982 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26983 · CWE-787
Affected applications lack proper validation of user-supplied data when parsing PDF files. This could result in an out-of-bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26983 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26984 · CWE-787
Affected applications lack proper validation of user-supplied data when parsing JT files. This could result in an out-of-bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26984 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26985 · CWE-122
Affected applications lack proper validation of user-supplied data when parsing RGB and SGI files. This could result in a heap-based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26985 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26986 · CWE-122
Affected applications lack proper validation of user-supplied data when parsing JT files. This could lead to a heap-based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26986 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26987 · CWE-122
Affected applications lack proper validation of user-supplied data when parsing TGA files. This could lead to a heap-based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26987 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26988 · CWE-787
Affected applications lack proper validation of user-supplied data when parsing PAR files. This could result in an out-of-bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26988 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26992 · CWE-121
Affected applications lack proper validation of user-supplied data when parsing CGM files. This could lead to a stack-based buffer overflow while trying to copy to a buffer during font string handling. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26992 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26993 · CWE-121
Affected applications lack proper validation of user-supplied data when parsing CGM files. This could lead to a stack-based buffer overflow while trying to copy to a buffer during font index handling. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26993 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26994 · CWE-122
Affected applications lack proper validation of user-supplied data when parsing PCX files. This could result in a heap-based buffer overflow. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26994 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26995 · CWE-787
Affected applications lack proper validation of user-supplied data when parsing SGI and RGB files. This could result in an out-of-bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26995 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
- CVE-2020-26996 · CWE-125
Affected applications lack proper validation of user-supplied data when parsing CG4 files. This could result in a memory access past the end of an allocated buffer. An attacker could leverage this vulnerability to execute code in the context of the current process. CVE-2020-26996 has been assigned to this vulnerability. A CVSS v3 base score of 7.8 has been calculated; the CVSS vector string is (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).
Acknowledgments, as the advisory lists them
- Francis Provencher (PRL), rgod, Trend Micro 's Zero Day Initiative: reporting these vulnerabilities
- Carsten Eiram, Risk Based Security: reporting these vulnerabilities
The advisory's legal notice
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Sources
DeSpy's copy of this version is dated 2026-09-28.
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