Vulnerability Name:

CVE-2019-12378 (CCN-161701)

Assigned:2019-05-25
Published:2019-05-25
Updated:2019-06-10
Summary:** DISPUTED ** An issue was discovered in ip6_ra_control in net/ipv6/ipv6_sockglue.c in the Linux kernel through 5.1.5. There is an unchecked kmalloc of new_ra, which might allow an attacker to cause a denial of service (NULL pointer dereference and system crash).
Note: This has been disputed as not an issue.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
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): High
CVSS v2 Severity:4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-476
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-12378

Source: BID
Type: Third Party Advisory, VDB Entry
108475

Source: XF
Type: UNKNOWN
linux-kernel-cve201912378-dos(161701)

Source: CCN
Type: Linux Kernel GIT Repository
ipv6_sockglue: Fix a missing-check bug in ip6_ra_control()

Source: MISC
Type: Mailing List, Patch, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=95baa60a0da80a0143e3ddd4d3725758b4513825

Source: FEDORA
Type: UNKNOWN
FEDORA-2019-f40bd7826f

Source: FEDORA
Type: UNKNOWN
FEDORA-2019-7ec378191e

Source: MISC
Type: Mailing List, Patch, Third Party Advisory
https://lkml.org/lkml/2019/5/25/229

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version <= 5.1.5)

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:5.1.5:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.cosmic:def:2019123780000000
    V
    		CVE-2019-12378 on Ubuntu 18.10 (cosmic) - medium.
    2019-05-27
    oval:com.ubuntu.bionic:def:2019123780000000
    V
    		CVE-2019-12378 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-05-27
    oval:com.ubuntu.xenial:def:2019123780000000
    V
    		CVE-2019-12378 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-05-27
    BACK
    linux linux kernel *
    linux linux kernel 5.1.5