Buffer overflow from a crafted DBF file
CVE-2021-33035

7.8HIGH

Key Information:

Vendor

Apache
Status
Apache Openoffice
Vendor
CVE Published:
23 September 2021

What is CVE-2021-33035?

Apache OpenOffice opens dBase/DBF documents and shows the contents as spreadsheets. DBF are database files with data organized in fields. When reading DBF data the size of certain fields is not checked: the data is just copied into local variables. A carefully crafted document could overflow the allocated space, leading to the execution of arbitrary code by altering the contents of the program stack. This issue affects Apache OpenOffice up to and including version 4.1.10

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Deploy the Patch

Affected Version(s)

Apache OpenOffice Apache OpenOffice <= 4.1.10

Apache OpenOffice OpenOffice.org <= 3.4

References

https://github.com/apache/openoffice/commit/efddaef0151af...
x_refsource_MISC
https://lists.apache.org/thread.html/r929c0c6a53cad64a100...
mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r1ab8532e11f41bc7ca0...
mailing-listx_refsource_MLIST

EPSS Score

14% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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