CVE-2019-5619

published 2020-04-29

CVE-2019-5619: AASync.com AASync version 2.2.1.0 suffers from an instance of CWE-121: Stack-based Buffer Overflow.

Priority P2 60 critical 9.8 CVSS 3.1

AV N AC L PR N UI N S U C H I H A H

EXPLOIT

AASync.com AASync version 2.2.1.0 suffers from an instance of CWE-121: Stack-based Buffer Overflow.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
aasync.com	aasync	—	—
aasync	aasync	—	—

Detection & IOCs extracted from sources · hover to see the quote

version AASync 2.2.1.0↗

other LIST command FTP response overflow (AASync v2.2.1.0 Win32)↗

• → Monitor for AASync v2.2.1.0 processes receiving abnormally large or malformed FTP LIST command responses, which may indicate exploitation of the stack-based buffer overflow. ↗
• → The overflow overwrites a Structured Exception Handler (SEH) record; look for SEH-chain corruption indicators in crash dumps or AV/EDR telemetry associated with AASync processes. ↗

• · Exploitation is specific to the Win32 build of AASync v2.2.1.0; other versions or platforms are not confirmed vulnerable by the available sources. ↗

CVSS provenance

nvd v3.1 9.8 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

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CWE-121 CWE-787