Description: A heap-based buffer overflow vulnerability exists in the XML Decompression DecodeTreeBlock functionality of AT&T Labs Xmill 0.7. Within `DecodeTreeBlock` which is called during the decompression of an XMI file, a UINT32 is loaded from the file and used as trusted input as the length of a buffer. An attacker can provide a malicious file to trigger this vulnerability.
CVE-2021-21827
Published Date: 2021-08-20T22:15Z
Last Modified: 2022-05-31T22:08Z
CVSS Score: 9.8 (CRITICAL)
EPSS Score: 0.34%
Risk Score: 6.86 (HIGH)
Risk Score based on CVSS score and EPSS. This score is for reference purposes and is not internationally recognized.
CVSS:
9.8 |
EPSS:
0.34%
Mitre ATT&CK Technical v15.1
T1204.002 – Malicious File
T1053.002 – At
Technical Analysis & Mitigation Measures
Reference Links
Vendor - Produce - Version
xmill - att
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