Vulnerability Name:

CVE-2017-17127 (CCN-135837)

Assigned:2017-11-17
Published:2017-11-17
Updated:2019-11-21
Summary:The vc1_decode_frame function in libavcodec/vc1dec.c in Libav 12.2 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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): None
Integrity (I): None
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:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
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-476
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-17127

Source: CCN
Type: Bugzilla – Bug 1099
Null pointer dereference on vc1_decode_frame

Source: MISC
Type: Exploit, Issue Tracking
https://bugzilla.libav.org/show_bug.cgi?id=1099

Source: MISC
Type: UNKNOWN
https://deb.freexian.com/extended-lts/tracker/CVE-2017-17127

Source: XF
Type: UNKNOWN
libav-cve201717127-dos(135837)

Source: CCN
Type: Libav Web site
Libav

Source: MLIST
Type: UNKNOWN
[debian-lts-announce] 20191205 [SECURITY] [DLA 2021-1] libav security update

Vulnerable Configuration:Configuration 1:
  • cpe:/a:libav:libav: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:201717127000
    V
    		CVE-2017-17127 on Ubuntu 14.04 LTS (trusty) - low.
    2017-12-04
    BACK
    libav libav 12.2
    libav libav 12.2