Multiple vulnerabilities in libvpx



Published: 2019-09-27 | Updated: 2020-01-27
Risk Low
Patch available YES
Number of vulnerabilities 5
CVE-ID CVE-2019-9371
CVE-2019-9433
CVE-2019-9325
CVE-2019-9232
CVE-2019-2126
CWE-ID CWE-400
CWE-20
CWE-125
CWE-415
Exploitation vector Network
Public exploit N/A
Vulnerable software
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libvpx
Client/Desktop applications / Multimedia software

Vendor WebM Project

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

UPDATED: 20.12.2019

Changed bulletin status to "Patched", updated vulnerability descriptions and CVSS scores to reflect  availability of the patched version.

Updated: 27.01.2019

Added vulnerability #5

1) Resource exhaustion

EUVDB-ID: #VU23106

Risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-9371

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation when processing media content in libvpx. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libvpx: 0.9.0 - 1.8.1

External links

http://www.openwall.com/lists/oss-security/2019/10/25/17
http://www.openwall.com/lists/oss-security/2019/10/27/1
http://source.android.com/security/bulletin/android-10


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Input validation error

EUVDB-ID: #VU23105

Risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-9433

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input when processing media content in libvpx. A remote attacker can pass specially crafted file to the application and gain access to sensitive information.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libvpx: 0.9.0 - 1.8.1

External links

http://www.openwall.com/lists/oss-security/2019/10/25/17
http://www.openwall.com/lists/oss-security/2019/10/27/1
http://source.android.com/security/bulletin/android-10


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Out-of-bounds read

EUVDB-ID: #VU23104

Risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-9325

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a missing bounds check when processing media content in libvpx. 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libvpx: 0.9.0 - 1.8.1

External links

http://www.openwall.com/lists/oss-security/2019/10/25/17
http://www.openwall.com/lists/oss-security/2019/10/27/1
http://source.android.com/security/bulletin/android-10


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Out-of-bounds read

EUVDB-ID: #VU23103

Risk: Low

CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-9232

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to a missing bounds check when processing media content in libvpx. 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libvpx: 0.9.0 - 1.8.1

External links

http://www.openwall.com/lists/oss-security/2019/10/25/17
http://www.openwall.com/lists/oss-security/2019/10/27/1
http://source.android.com/security/bulletin/android-10


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Double Free

EUVDB-ID: #VU24676

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-2126

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when processing user-supplied data within the ParseContentEncodingEntry() function of mkvparser.cpp. A remote attacker can pass specially crafted data to the application, trigger a double free error and execute arbitrary code on the target system.

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

Mitigation

Update to version 1.8.2.

Vulnerable software versions

libvpx: 1.4.0 - 1.8.1

External links

http://github.com/webmproject/libvpx/commit/6a7c84a2449dcc70de2525df209afea908622399#diff-6bf546b8d7f5cc4db353cdd906a8f5e7


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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