2021-21830 | AT&T Xmill XML Decompression Load heap-based overflow (TALOS-2021-1293)
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A vulnerability was found in AT&T Xmill 0.7. It has been classified as critical. Affected is the function
LabelDict::Load of the component XML Decompression Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-122. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
A heap-based buffer overflow vulnerability exists in the XML Decompression LabelDict::Load functionality of AT&T Labs’ Xmill 0.7. A specially crafted XMI file can lead to remote code execution. An attacker can provide a malicious file to trigger this vulnerability.
The weakness was disclosed 08/14/2021 as TALOS-2021-1293. The advisory is shared for download at talosintelligence.com. This vulnerability is traded as CVE-2021-21830 since 01/04/2021. The exploitability is told to be easy. It is possible to launch the attack remotely. The successful exploitation requires a authentication. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/18/2021).
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.1
Status: Not defined
0-Day Time: 🔒
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