Multiple vulnerabilities in Itseez OpenCV



| Updated: 2020-07-17
Risk High
Patch available YES
Number of vulnerabilities 4
CVE-ID CVE-2019-19624
CVE-2019-14491
CVE-2019-14492
CVE-2019-14493
CWE-ID CWE-125
CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
 OpenCV
Universal components / Libraries / Libraries used by multiple products

Vendor Itseez

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU30559

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-19624

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

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

An out-of-bounds read was discovered in OpenCV before 4.1.1. Specifically, variable coarsest_scale is assumed to be greater than or equal to finest_scale within the calc()/ocl_calc() functions in dis_flow.cpp. However, this is not true when dealing with small images, leading to an out-of-bounds read of the heap-allocated arrays Ux and Uy.

Mitigation

Install update from vendor's website.

Vulnerable software versions

OpenCV: 4.1.0

CPE2.3 External links

https://access.redhat.com/security/cve/cve-2019-19624
https://github.com/opencv/opencv/commit/d1615ba11a93062b1429fce9f0f638d1572d3418
https://github.com/opencv/opencv/issues/14554


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) Out-of-bounds read

EUVDB-ID: #VU30954

Risk: High

CVSSv4.0: 6.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-14491

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

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

An issue was discovered in OpenCV before 3.4.7 and 4.x before 4.1.1. There is an out of bounds read in the function cv::predictOrdered<cv::HaarEvaluator> in modules/objdetect/src/cascadedetect.hpp, which leads to denial of service.

Mitigation

Install update from vendor's website.

Vulnerable software versions

OpenCV: 4.0.0 - 4.1.0

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2019-12/msg00025.html
https://github.com/opencv/opencv/compare/33b765d...4a7ca5a
https://github.com/opencv/opencv/compare/371bba8...ddbd10c
https://github.com/opencv/opencv/issues/15125
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HPFLN6QAX6SUA4XR4NMKKXX26H3TYCVQ/


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: #VU30955

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-14492

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

Exploit availability: No

Description

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

An issue was discovered in OpenCV before 3.4.7 and 4.x before 4.1.1. There is an out of bounds read/write in the function HaarEvaluator::OptFeature::calc in modules/objdetect/src/cascadedetect.hpp, which leads to denial of service.

Mitigation

Install update from vendor's website.

Vulnerable software versions

OpenCV: 4.0.0 - 4.1.0

CPE2.3 External links

https://lists.opensuse.org/opensuse-security-announce/2019-12/msg00025.html
https://github.com/opencv/opencv/compare/33b765d...4a7ca5a
https://github.com/opencv/opencv/compare/371bba8...ddbd10c
https://github.com/opencv/opencv/issues/15124


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) NULL pointer dereference

EUVDB-ID: #VU30956

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-14493

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dreference error in function cv::XMLParser::parse at modules/core/src/persistence.cpp. A remote attacker can perform a denial of service (DoS) attack.

Mitigation

Update to version 4.1.1.

Vulnerable software versions

OpenCV: 4.1.0

CPE2.3 External links

https://github.com/opencv/opencv/compare/371bba8...ddbd10c
https://github.com/opencv/opencv/issues/15127


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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