AT&T Xmill 0.7 XML Decompression DecodeTreeBlock heap-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in AT&T Xmill 0.7. Affected by this vulnerability is the function DecodeTreeBlock of the component XML Decompression Handler. Executing a manipulation can lead to heap-based overflow. This vulnerability appears as CVE-2021-21826. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in AT&T Xmill 0.7. It has been declared as critical. This vulnerability affects the function DecodeTreeBlock of the component XML Decompression Handler. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 08/21/2021. The advisory is available at talosintelligence.com. This vulnerability was named CVE-2021-21826. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/04/2021 🔍
08/21/2021 +228 days 🔍
08/21/2021 +0 days 🔍
08/25/2021 +4 days 🔍

Sourcesinfo

Advisory: talosintelligence.com
Status: Not defined

CVE: CVE-2021-21826 (🔍)
GCVE (CVE): GCVE-0-2021-21826
GCVE (VulDB): GCVE-100-181258

Entryinfo

Created: 08/21/2021 08:26
Updated: 08/25/2021 16:25
Changes: 08/21/2021 08:26 (37), 08/25/2021 16:25 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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