SB2022092618 - Multiple vulnerabilities in Dell EMC AppSync

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Main Vulnerability Database SB2022092618

SB2022092618 - Multiple vulnerabilities in Dell EMC AppSync

Published: September 26, 2022

Security Bulletin ID SB2022092618
Severity
High
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 25% Medium 50% Low 25%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2019-12900)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the BZ2_decompress() function in decompress.c. A remote attacker can create a specially crafted archive, trick the victim into opening it using the affected library, trigger out-of-bounds write and execute arbitrary code on the target system.

2) Use-after-free memory corruption in bzip2recover (CVE-ID: CVE-2016-3189)

The vulnerability allows a remote attacker to cause the target application to crash.

The vulnerability exists due to an use-after-free error in bzip2recover when handling bzip2 files. A remote unauthenticated attacker can send a specially crafted bzip2 archive and cause the target application to crash.

Successful exploitation of this vulnerability will result in denial of service.


3) Resource exhaustion (CVE-ID: CVE-2021-33503)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation in urllib3 when processing URL with multiple "@" characters in the authority component. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


4) Out-of-bounds read (CVE-ID: CVE-2021-3712)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing ASN.1 strings related to a confusion with NULL termination of strings in array. A remote attacker can pass specially crafted data to the application to trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References