Debian LTS Advisory ([SECURITY] [DLA 1630-1] libav security update)

Published: 2019-01-07 23:00:00
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Solution Type:
Vendor Patch

Detection Type:
Linux Distribution Package

Affected Versions:
libav on Debian Linux

Recommendations:
For Debian 8 'Jessie', these problems have been fixed in version 6:11.12-1~deb8u4. We recommend that you upgrade your libav Linux Distribution Packages.

Summary:
Several security vulnerabilities were corrected in the libav multimedia library which may lead to a denial-of-service, information disclosure or the execution of arbitrary code if a malformed file is processed. CVE-2017-9993 Libav does not properly restrict HTTP Live Streaming filename extensions and demuxer names, which allows attackers to read arbitrary files via crafted playlist data. CVE-2017-9994 libavcodec/webp.c in Libav does not ensure that pix_fmt is set, which allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file, related to the vp8_decode_mb_row_no_filter and pred8x8_128_dc_8_c functions. CVE-2017-14055 Denial-of-service in mv_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. CVE-2017-14056 Denial-of-service in rl2_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. CVE-2017-14057 Denial-of-service in asf_read_marker() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. CVE-2017-14170 Denial-of-service in mxf_read_index_entry_array() due to lack of an EOF (End of File) check might cause huge CPU consumption. CVE-2017-14171 Denial-of-service in nsv_parse_NSVf_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. CVE-2017-14767 The sdp_parse_fmtp_config_h264 function in libavformat/rtpdec_h264.c mishandles empty sprop-parameter-sets values, which allows remote attackers to cause a denial of service (heap buffer overflow) or possibly have unspecified other impact via a crafted sdp file. CVE-2017-15672 The read_header function in libavcodec/ffv1dec.c allows remote attackers to have unspecified impact via a crafted MP4 file, which triggers an out-of-bounds read. CVE-2017-17130 The ff_free_picture_tables function in libavcodec/mpegpicture.c allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file, related to vc1_decode_i_blocks_adv. CVE-2018-6621 The decode_frame function in libavcodec/utvideodec.c in Libav allows remote attackers to cause a denial of service (out of array read) via a crafted AVI file. CVE-2018-7557 The decode_init function in libavcodec/utvideodec.c in Libav allows remote attackers to cause a denial of service (Out of array read) via an AVI file with crafted dimensions within chroma subsampling data. CVE-2018-14394 libavformat/movenc.c in Libav allows attackers to cause a denial of service (application crash caused by a divide-by-zero error) with a user crafted Waveform audio file. CVE-2018-1999010 Libav contains multiple out of array access vulnerabilities in the mms protocol that can result in attackers accessing out of bound data.

Detection Method:
This check tests the installed software version using the apt Linux Distribution Package manager.

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2017-14055
https://nvd.nist.gov/vuln/detail/CVE-2017-14056
https://nvd.nist.gov/vuln/detail/CVE-2017-14057
https://nvd.nist.gov/vuln/detail/CVE-2017-14170
https://nvd.nist.gov/vuln/detail/CVE-2017-14171
https://nvd.nist.gov/vuln/detail/CVE-2017-14767
https://nvd.nist.gov/vuln/detail/CVE-2017-15672
https://nvd.nist.gov/vuln/detail/CVE-2017-17130
https://nvd.nist.gov/vuln/detail/CVE-2017-9993
https://nvd.nist.gov/vuln/detail/CVE-2017-9994
https://nvd.nist.gov/vuln/detail/CVE-2018-14394
https://nvd.nist.gov/vuln/detail/CVE-2018-1999010
https://nvd.nist.gov/vuln/detail/CVE-2018-6621
https://nvd.nist.gov/vuln/detail/CVE-2018-7557

References:

https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html

Severity
High
CVSS Score
7.5
Published
2019-01-07
Modified
2019-03-18
Category
Debian Local Security Checks

Free Vulnerability Scanning, Assessment and Management

Mageni's Platform is packed with all the features you need to scan, assess and manage vulnerabilities like this - it is free, open source, lightning fast, reliable and scalable.

Router
Servers
Laptop
Database
Group
Cloud

Frequently Asked Questions

No, you can scan concurrently as many assets as you want. Please note that you must be aware of the hardware requeriments of the platform to ensure a good performance.

No, you can add as many assest as you want. It doesn't matters if you have millions of assets, we won't charge you for that.

No. The software is completely free. We have no intention to charge you to use the software, in fact - it completely goes against our beliefs and business model.

A vulnerability is defined in the ISO 27002 standard as “A weakness of an asset or group of assets that can be exploited by one or more threats” (International Organization for Standardization, 2005)

We generate revenue by providing support and other services for customers that require a subscription so they get guaranteed support and enterprise services. To use Mageni's Platform is completely free, with no limits at all.

Yes. Mageni understands that there are professionals and businesses that need commercial support so Mageni provides an active support subscription with everything needed to run Mageni's Platform reliably and securely. More than software, it's access to security experts, knowledge resources, security updates, and support tools you can't get anywhere else. The subscription includes:

  • Ongoing delivery
    • Patches
    • Bug fixes
    • Updates
    • Upgrades
  • Technical support
    • 24/7 availability
    • Unlimited Incidents
    • Specialty-based routing
    • Multi-Channel
  • Commitments
    • Software certifications
    • Software assurance
    • SLA

No, we don't store the information of your vulnerabilities in our servers.

Vulnerability management is the process in which vulnerabilities in IT are identified and the risks of these vulnerabilities are evaluated. This evaluation leads to correcting the vulnerabilities and removing the risk or a formal risk acceptance by the management of an organization. The term vulnerability management is often confused with vulnerability scanning. Despite the fact both are related, there is an important difference between the two. Vulnerability scanning consists of using a computer program to identify vulnerabilities in networks, computer infrastructure or applications. Vulnerability management is the process surrounding vulnerability scanning, also taking into account other aspects such as risk acceptance, remediation etc. Source: "Implementing a Vulnerability Management Process". SANS Institute.

I am ready to start scanning for vulnerabilities