What is CVE-2017-1000112?

CVE-2017-1000112 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10, classified as a Race Condition flaw (CWE-362). CVE-2017-1000112 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2017-1000112?

CVE-2017-1000112 has a CVSS score of 7.0 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2017-1000112?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-1000112 patch availability.

Is CVE-2017-1000112 actively exploited?

CVE-2017-1000112 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Race Condition (CWE-362)?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/362.html

CVE-2017-1000112

High

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.

Package Linux Kernel

Published 2017-10-05

Last modified 2026-05-13

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.0

out of 10

High

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-362

CVE-2017-1000112 is a Race Condition vulnerability

What is Race Condition?

The product contains a code sequence that can run concurrently with other code, creating unexpected states. Learn more on MITRE CWE

References

13 total

Seclists
http://seclists.org/oss-sec/2017/q3/277

Mailing List Patch Third Party Advisory
Debian Security
http://www.debian.org/security/2017/dsa-3981

Third Party Advisory
Securityfocus
http://www.securityfocus.com/bid/100262

Third Party Advisory VDB Entry
Securitytracker
http://www.securitytracker.com/id/1039162

Third Party Advisory VDB Entry
Red Hat
https://access.redhat.com/errata/RHSA-2017:2918

Third Party Advisory

Showing 5 of 13 references View all on NVD

Details

CVE ID CVE-2017-1000112

Severity High

CVSS score 7.0 / 10

CVSS version 3.1

Published 2017-10-05

Modified 2026-05-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2017-1000112?

CVE-2017-1000112 is a High severity Linux kernel vulnerability with a CVSS score of 7.0 out of 10 , classified as a Race Condition flaw (CWE-362) . CVE-2017-1000112 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2017-1000112?

CVE-2017-1000112 has a CVSS score of 7.0 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2017-1000112?

Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2017-1000112 patch availability.
Is CVE-2017-1000112 actively exploited?

No. CVE-2017-1000112 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.