Multiple vulnerabilities in Libav



Published: 2018-05-15 | Updated: 2020-08-08
Risk Medium
Patch available NO
Number of vulnerabilities 4
CVE-ID CVE-2019-14441
CVE-2019-14442
CVE-2019-14443
CVE-2018-11102
CWE-ID CWE-119
CWE-399
CWE-369
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Libav
Client/Desktop applications / Multimedia software

Vendor Libav

Security Bulletin

This security bulletin contains information about 4 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU35650

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-14441

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.

** DISPUTED ** An issue was discovered in Libav 12.3. An access violation allows remote attackers to cause a denial of service (application crash), as demonstrated by avconv. This is related to ff_mpa_synth_filter_float in avcodec/mpegaudiodsp_template.c. NOTE: This may be a duplicate of CVE-2018-19129.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Libav: 12.3

CPE2.3 External links

http://bugzilla.libav.org/show_bug.cgi?id=1161#c0


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) Resource management error

EUVDB-ID: #VU35651

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-14442

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

In mpc8_read_header in libavformat/mpc8.c in Libav 12.3, an input file can result in an avio_seek infinite loop and hang, with 100% CPU consumption. Attackers could leverage this vulnerability to cause a denial of service via a crafted file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Libav: 12.3

CPE2.3 External links

http://bugzilla.libav.org/show_bug.cgi?id=1159
http://lists.debian.org/debian-lts-announce/2019/09/msg00000.html


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) Division by zero

EUVDB-ID: #VU35652

Risk: Medium

CVSSv3.1: 6 [AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2019-14443

CWE-ID: CWE-369 - Divide By Zero

Exploit availability: No

Description

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

The vulnerability exists due to a division by zero error within . A remote attacker can pass specially crafted data to the application and crash it.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Libav: 12.3

CPE2.3 External links

http://bugzilla.libav.org/show_bug.cgi?id=1161#c1
http://lists.debian.org/debian-lts-announce/2019/12/msg00003.html


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) Buffer overflow

EUVDB-ID: #VU37133

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-11102

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.

An issue was discovered in Libav 12.3. A read access violation in the mov_probe function in libavformat/mov.c allows remote attackers to cause a denial of service (application crash), as demonstrated by avconv.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Libav: 12.3

CPE2.3 External links

http://bugzilla.libav.org/show_bug.cgi?id=1128
http://docs.google.com/document/d/18xCwfxMSJiQ9ruQSVaO8-jlcobDjFiYXWOaw31V37xo/edit
http://lists.debian.org/debian-lts-announce/2019/09/msg00000.html


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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