Vulnerability Name:

CVE-2017-9051 (CCN-126195)

Assigned:2017-05-18
Published:2017-05-18
Updated:2017-05-25
Summary:libav before 12.1 is vulnerable to an invalid read of size 1 due to NULL pointer dereferencing in the nsv_read_chunk function in libavformat/nsvdec.c.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-476
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-9051

Source: BID
Type: UNKNOWN
98548

Source: CCN
Type: BID-98548
Libav 'libavformat/nsvdec.c' NULL Pointer Dereference Denial of Service Vulnerability

Source: CCN
Type: Bugzilla – Bug 1039
Null pointer dereference in nsvdec.c

Source: MISC
Type: Issue Tracking
https://bugzilla.libav.org/show_bug.cgi?id=1039

Source: XF
Type: UNKNOWN
libav-cve20179051-dos(126195)

Source: CCN
Type: libav GIT Repository
nsvdec: don't ignore the return value of av_get_packet()

Source: MISC
Type: Issue Tracking, Patch, Third Party Advisory
https://github.com/libav/libav/commit/fe6eea99efac66839052af547426518efd970b24

Vulnerable Configuration:Configuration 1:
  • cpe:/a:libav:libav:*:*:*:*:*:*:*:* (Version <= 12.0)

    • Configuration CCN 1:
  • cpe:/a:libav:libav:11.9:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.xenial:def:201790510000000
    V
    		CVE-2017-9051 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-05-18
    oval:com.ubuntu.artful:def:20179051000
    V
    		CVE-2017-9051 on Ubuntu 17.10 (artful) - medium.
    2017-05-18
    oval:com.ubuntu.xenial:def:20179051000
    V
    		CVE-2017-9051 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-05-18
    oval:com.ubuntu.disco:def:201790510000000
    V
    		CVE-2017-9051 on Ubuntu 19.04 (disco) - medium.
    2017-05-18
    oval:com.ubuntu.bionic:def:20179051000
    V
    		CVE-2017-9051 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-05-18
    oval:com.ubuntu.cosmic:def:201790510000000
    V
    		CVE-2017-9051 on Ubuntu 18.10 (cosmic) - medium.
    2017-05-18
    oval:com.ubuntu.cosmic:def:20179051000
    V
    		CVE-2017-9051 on Ubuntu 18.10 (cosmic) - medium.
    2017-05-18
    oval:com.ubuntu.bionic:def:201790510000000
    V
    		CVE-2017-9051 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-05-18
    oval:com.ubuntu.trusty:def:20179051000
    V
    		CVE-2017-9051 on Ubuntu 14.04 LTS (trusty) - medium.
    2017-05-18
    BACK
    libav libav *
    libav libav 11.9