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

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in AT&T Xmill 0.7. This impacts the function PlainTextUncompressor::UncompressItem of the component XML Decompression Handler. Executing a manipulation can lead to heap-based overflow. This vulnerability is tracked as CVE-2021-21825. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in AT&T Xmill 0.7 and classified as critical. This vulnerability affects the function PlainTextUncompressor::UncompressItem 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 disclosed 08/18/2021 as TALOS-2021-1290. The advisory is available at talosintelligence.com. This vulnerability was named CVE-2021-21825. 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.

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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 🔍
08/18/2021 +225 days 🔍
08/18/2021 +0 days 🔍
08/21/2021 +3 days 🔍

Sourcesinfo

Advisory: TALOS-2021-1290
Status: Not defined

CVE: CVE-2021-21825 (🔍)
GCVE (CVE): GCVE-0-2021-21825
GCVE (VulDB): GCVE-100-181102

Entryinfo

Created: 08/18/2021 18:06
Updated: 08/21/2021 09:12
Changes: 08/18/2021 18:06 (38), 08/21/2021 09:12 (2)
Complete: 🔍
Cache ID: 216::103

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