Home CVE Database CVE-2017-1000112

CVE-2017-1000112

Description

A memory corruption issue was found in the Linux kernel. 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.

Priority: MEDIUM
CVSS v3: 7
Publish Date: Aug 27, 2017
Related ID: --
CVSS v2: High
Modified Date: Aug 27, 2017

Find out more about CVE-2017-1000112 from the MITRE-CVE dictionary and NIST NVD


Products Affected

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Product Name Status Defect Fixed Downloads
Linux
Wind River Linux LTS 17 Won't Fix -- -- --
Wind River Linux 8 Fixed LIN8-7476
8.0.0.21 --
Wind River Linux 9 Fixed LIN9-5109
9.0.0.10 --
Wind River Linux 7 Fixed -- 7.0.0.26 --
Wind River Linux LTS 21 Won't Fix -- -- --
Wind River Linux LTS 18 Won't Fix -- -- --
Wind River Linux LTS 19 Won't Fix -- -- --
Wind River Linux CD release Won't Fix -- -- --
VxWorks
VxWorks 7 Not Vulnerable -- -- --
VxWorks 6.9 Not Vulnerable -- -- --

Related Products

Product Name Status Defect Fixed Downloads

Comments

linux


Notes
Requires LTSS - customers must have active LTSS (Long Term Security Shield) Support to receive up-to-date information about vulnerabilities that may affect legacy software. Please contact your Wind River account team or see https://docs.windriver.com/bundle/Support_and_Maintenance_Supplemental_Terms_and_Conditions and https://support2.windriver.com/index.php?page=plc for more information.
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