SB2021060725 - Multiple vulnerabilities in libwebp

Main Vulnerability Database SB2021060725

SB2021060725 - Multiple vulnerabilities in libwebp

Published: June 7, 2021

Security Bulletin ID SB2021060725

Severity

High

Patch available

YES

Number of vulnerabilities 11

Exploitation vector Remote access

Highest impact Code execution

Breakdown by Severity

Low
Medium
High
Critical

Description

This security bulletin contains information about 11 secuirty vulnerabilities.

1) Resource exhaustion (CVE-ID: CVE-2020-36332)

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

The vulnerability exists due to application does not properly control consumption of internal resources in libwebp. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

2) Use of Uninitialized Variable (CVE-ID: CVE-2018-25014)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to usage of unitialized variable in the ReadSymbol() function in libwebp. A remote attacker can trick the victim to open a specially crated file and execute arbitrary code on the system.

3) Out-of-bounds read (CVE-ID: CVE-2020-36331)

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

The vulnerability exists due to a boundary condition in the ChunkAssignData() function in libwebp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

4) Out-of-bounds read (CVE-ID: CVE-2020-36330)

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

The vulnerability exists due to a boundary condition in the ChunkVerifyAndAssign() function in libwebp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

5) Out-of-bounds read (CVE-ID: CVE-2018-25013)

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

The vulnerability exists due to a boundary condition in the ShiftBytes() function in libwebp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

6) Out-of-bounds read (CVE-ID: CVE-2018-25012)

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

The vulnerability exists due to a boundary condition in the WebPMuxCreateInternal() function in libwebp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

7) Out-of-bounds read (CVE-ID: CVE-2018-25010)

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

The vulnerability exists due to a boundary condition in the ApplyFilter() function in libwebp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

8) Out-of-bounds read (CVE-ID: CVE-2018-25009)

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

The vulnerability exists due to a boundary condition in the WebPMuxCreateInternal() function in libwebp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

9) Heap-based buffer overflow (CVE-ID: CVE-2018-25011)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in PutLE16() function in libwebp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

10) Heap-based buffer overflow (CVE-ID: CVE-2020-36328)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in WebPDecodeRGBInto function in libwebp. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

11) Use-after-free (CVE-ID: CVE-2020-36329)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in libwebp. A remote attacker can trick the victim to open a specially crafted file, trigger a use-after-free error and execute arbitrary code on the system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Remediation

Install update from vendor's website.

References