Vulnerability Name:

CVE-2018-5766 (CCN-137799)

Assigned:2018-01-18
Published:2018-01-18
Updated:2019-09-02
Summary:In Libav through 12.2, there is an invalid memcpy in the av_packet_ref function of libavcodec/avpacket.c. Remote attackers could leverage this vulnerability to cause a denial of service (segmentation fault) via a crafted avi file.
CVSS v3 Severity:8.8 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
Availibility (A): High
3.3 Low (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)
2.9 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:U/RC:R)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
1.7 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-119
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-5766

Source: BID
Type: Third Party Advisory, VDB Entry
102793

Source: CCN
Type: BID-102793
Libav CVE-2018-5766 Denial of Service Vulnerability

Source: CCN
Type: Bugzilla – Bug 1112
invalid memcpy in av_packet_ref (libavcodec/avpacket.c)

Source: MISC
Type: Exploit, Issue Tracking, Third Party Advisory
https://bugzilla.libav.org/show_bug.cgi?id=1112

Source: XF
Type: UNKNOWN
libav-cve20185766-dos(137799)

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20190902 [SECURITY] [DLA 1907-1] libav security update

Source: CCN
Type: Libav Web site
Libav

Vulnerable Configuration:Configuration 1:
  • cpe:/a:libav:libav:*:*:*:*:*:*:*:* (Version <= 12.2)

    • Configuration CCN 1:
  • cpe:/a:libav:libav:12.2:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.trusty:def:20185766000
    V
    		CVE-2018-5766 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-01-18
    BACK
    libav libav *
    libav libav 12.2