Vulnerability Name:

CVE-2018-14641 (CCN-150063)

Assigned:2018-09-18
Published:2018-09-18
Updated:2019-10-09
Summary:A security flaw was found in the ip_frag_reasm() function in net/ipv4/ip_fragment.c in the Linux kernel from 4.19-rc1 to 4.19-rc3 inclusive, which can cause a later system crash in ip_do_fragment(). With certain non-default, but non-rare, configuration of a victim host, an attacker can trigger this crash remotely, thus leading to a remote denial-of-service.
CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 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: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): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:7.1 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-14641

Source: REDHAT
Type: Third Party Advisory
RHSA-2018:2948

Source: CONFIRM
Type: Issue Tracking, Patch
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14641

Source: XF
Type: UNKNOWN
linux-kernel-cve201814641-dos(150063)

Source: CONFIRM
Type: Patch, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5d407b071dc369c26a38398326ee2be53651cfe4

Source: CCN
Type: oss-sec Mailing List, Tue, 18 Sep 2018 06:02:29 -0400 (EDT)
CVE-2018-14641: Linux kernel: a security flaw in the ip_frag_reasm()

Source: MLIST
Type: Exploit, Mailing List, Patch, Third Party Advisory
[oss-security] 20180918 CVE-2018-14641: Linux kernel: a security flaw in the ip_frag_reasm()

Source: CCN
Type: Linux Kernel Web site
Linux Kernel

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-14641

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:4.19:rc1:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.19:rc2:*:*:*:*:*:*
  • OR cpe:/o:linux:linux_kernel:4.19:rc3:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.bionic:def:201814641000
    V
    		CVE-2018-14641 on Ubuntu 18.04 LTS (bionic) - high.
    2018-09-18
    oval:com.ubuntu.xenial:def:2018146410000000
    V
    		CVE-2018-14641 on Ubuntu 16.04 LTS (xenial) - high.
    2018-09-18
    oval:com.ubuntu.trusty:def:201814641000
    V
    		CVE-2018-14641 on Ubuntu 14.04 LTS (trusty) - high.
    2018-09-18
    oval:com.ubuntu.xenial:def:201814641000
    V
    		CVE-2018-14641 on Ubuntu 16.04 LTS (xenial) - high.
    2018-09-18
    oval:com.ubuntu.bionic:def:2018146410000000
    V
    		CVE-2018-14641 on Ubuntu 18.04 LTS (bionic) - high.
    2018-09-18
    BACK
    linux linux kernel 4.19 rc1
    linux linux kernel 4.19 rc2
    linux linux kernel 4.19 rc3