CVE-2017-1000112
Scores
EPSS
Percentile: 84.1%
CVSS
CVSS Score: 7.0/10
All CVSS Scores
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Local (L)
Describes how the vulnerability is exploited
Attack Complexity
High (H)
Describes the conditions beyond the attacker's control
Privileges Required
Low (L)
Describes the level of privileges an attacker must possess
User Interaction
None (N)
Captures the requirement for a human user participation
Scope
Unchanged (U)
Determines if a successful attack impacts components beyond the vulnerable component
Confidentiality Impact
High (H)
Measures the impact to the confidentiality of information
Integrity Impact
High (H)
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
High (H)
Measures the impact to the availability of the impacted component
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Vector Breakdown
CVSS (Common Vulnerability Scoring System) vector provides detailed metrics about vulnerability characteristics
CVSS
Attack Vector
Local (L)
Describes how the vulnerability is exploited
Attack Complexity
Medium
Describes the conditions beyond the attacker's control
Authentication
None (N)
Describes the level of privileges an attacker must possess
Confidentiality Impact
Complete
Measures the impact to the confidentiality of information
Integrity Impact
Complete
Measures the impact to integrity of a successfully exploited vulnerability
Availability Impact
Complete
Measures the impact to the availability of the impacted component
Description
Linux kernel: Exploitable memory corruption due to UFO to non-UFO path switch. When building a UFO packet with MSG_MORE __ip_append_data() calls ip_ufo_append_data() to append. However in between two send() calls, the append path can be switched from UFO to non-UFO one, which leads to a memory corruption. In case UFO packet lengths exceeds MTU, copy = maxfraglen - skb->len becomes negative on the non-UFO path and the branch to allocate new skb is taken. This triggers fragmentation and computation of fraggap = skb_prev->len - maxfraglen. Fraggap can exceed MTU, causing copy = datalen - transhdrlen - fraggap to become negative. Subsequently skb_copy_and_csum_bits() writes out-of-bounds. A similar issue is present in IPv6 code. The bug was introduced in e89e9cf539a2 (“[IPv4/IPv6]: UFO Scatter-gather approach”) on Oct 18 2005.
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Sources
CWEs
Exploits
Exploit ID: CVE-2017-1000112
Source: github-poc
Recommendations
Source: nvd
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
Source: nvd
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
Source: nvd
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
Source: nvd
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
Source: nvd
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
Source: nvd
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
Source: nvd
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://access.redhat.com/articles/11258
The system must be rebooted for this update to take effect.
Vulnerable Software (164)
Type: Configuration
Product: kernel
Operating System: rhel 5.9
{ "fixed": "2.6.18-348.44.1.el5"}
Source: redhat
Type: Configuration
Product: kernel
Operating System: rhel 5
{ "fixed": "2.6.18-438.el5"}
Source: redhat
Type: Configuration
Product: kernel
Operating System: rhel 6
{ "fixed": "2.6.32-696.16.1.el6"}
Source: redhat
Type: Configuration
Product: kernel
Operating System: rhel 7
{ "fixed": "3.10.0-693.5.2.el7"}
Source: redhat
Type: Configuration
Product: kernel
Operating System: rhel 7.3
{ "fixed": "3.10.0-514.71.1.el7"}
Source: redhat
Type: Configuration
Product: kernel
Operating System: rhel 7.3
{ "fixed": "3.10.0-514.71.1.el7"}
Source: redhat
Type: Configuration
Product: kernel
Operating System: rhel 7.3
{ "fixed": "3.10.0-514.71.1.el7"}
Source: redhat
Type: Configuration
Product: kernel-rt
Operating System: rhel
{ "fixed": "3.10.0-693.5.2.rt56.626.el7"}
Source: redhat
Type: Configuration
Product: kernel-rt
Operating System: rhel
{ "fixed": "3.10.0-693.5.2.rt56.592.el6rt"}
Source: redhat
Type: Configuration
Product: linux
Operating System: debian
{ "fixed": "4.12.6-1"}
Source: debian
Type: Configuration
Product: linux
Operating System: ubuntu artful 17.10
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: linux
Operating System: ubuntu bionic 18.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: linux
Operating System: ubuntu cosmic 18.10
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: linux
Operating System: ubuntu focal 20.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: linux
Operating System: ubuntu jammy 22.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: linux
Operating System: ubuntu noble 24.04
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: linux
Operating System: ubuntu oracular 24.10
{ "unaffected": true}
Source: ubuntu
Type: Configuration
Product: linux
Operating System: ubuntu trusty 14.04
{ "fixed": "3.13.0-128.177"}
Source: ubuntu
Type: Configuration
Product: linux
Operating System: ubuntu xenial 16.04
{ "fixed": "4.4.0-91.114"}
Source: ubuntu
Type: Configuration
Product: linux
Operating System: ubuntu zesty 17.04
{ "fixed": "4.10.0-32.36"}
Source: ubuntu