Multiple vulnerabilities in Libav

Published: 2017-03-01 | Updated: 2020-08-08

Risk	Medium
Patch available	YES
Number of vulnerabilities	8
CVE-ID	CVE-2016-9819 CVE-2016-9820 CVE-2016-9821 CVE-2016-9822 CVE-2016-9823 CVE-2016-9824 CVE-2016-9825 CVE-2016-9826
CWE-ID	CWE-20 CWE-190 CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Libav Client/Desktop applications / Multimedia software
Vendor	Libav

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU39609

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/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-2016-9819

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

libavcodec/mpegvideo.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Libav: 11.8

CPE2.3

cpe:2.3:a:libav:libav:11.8:*:*:*:*:*:*:*

External links

https://www.securityfocus.com/bid/94732
https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/

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: #VU39610

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/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-2016-9820

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

libavcodec/mpegvideo_motion.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Libav: 11.8

CPE2.3

cpe:2.3:a:libav:libav:11.8:*:*:*:*:*:*:*

External links

https://www.securityfocus.com/bid/94732
https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/

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) Integer overflow

EUVDB-ID: #VU39611

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/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-2016-9821

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

Integer overflow in libavcodec/mpegvideo_parser.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via a crafted file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Libav: 11.8

CPE2.3

cpe:2.3:a:libav:libav:11.8:*:*:*:*:*:*:*

External links

https://www.debian.org/security/2017/dsa-3833
https://www.securityfocus.com/bid/94732
https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/

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) Integer overflow

EUVDB-ID: #VU39612

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/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-2016-9822

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

Integer overflow in libavcodec/mpeg12dec.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via a crafted file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Libav: 11.8

CPE2.3

cpe:2.3:a:libav:libav:11.8:*:*:*:*:*:*:*

External links

https://www.debian.org/security/2017/dsa-3833
https://www.securityfocus.com/bid/94732
https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/

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) Buffer overflow

EUVDB-ID: #VU39613

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/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-2016-9823

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

libavcodec/x86/mpegvideo.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via a crafted file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Libav: 11.8

CPE2.3

cpe:2.3:a:libav:libav:11.8:*:*:*:*:*:*:*

External links

https://www.securityfocus.com/bid/94732
https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/

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.

6) Integer overflow

EUVDB-ID: #VU39614

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/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-2016-9824

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

Integer overflow in libswscale/x86/swscale.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via a crafted file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Libav: 11.8

CPE2.3

cpe:2.3:a:libav:libav:11.8:*:*:*:*:*:*:*

External links

https://www.securityfocus.com/bid/94732
https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/

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.

7) Input validation error

EUVDB-ID: #VU39615

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/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-2016-9825

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

libswscale/utils.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Libav: 11.8

CPE2.3

cpe:2.3:a:libav:libav:11.8:*:*:*:*:*:*:*

External links

https://www.securityfocus.com/bid/94732
https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/

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.

8) Input validation error

EUVDB-ID: #VU39616

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/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-2016-9826

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

libavcodec/ituh263dec.c in libav 11.8 allows remote attackers to cause a denial of service (crash) via vectors involving left shift of a negative value.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Libav: 11.8

CPE2.3

cpe:2.3:a:libav:libav:11.8:*:*:*:*:*:*:*

External links

https://www.securityfocus.com/bid/94732
https://blogs.gentoo.org/ago/2016/12/01/libav-multiple-crashes-from-the-undefined-behavior-sanitizer/

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.