CVE-2017-1000112 (GCVE-0-2017-1000112)
Vulnerability from cvelistv5
Published
2017-10-04 01:00
Modified
2024-08-05 21:53
Severity ?
CWE
  • n/a
Summary
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.
References
cve@mitre.org http://seclists.org/oss-sec/2017/q3/277 Mailing List, Patch, Third Party Advisory
cve@mitre.org http://www.debian.org/security/2017/dsa-3981 Third Party Advisory
cve@mitre.org http://www.securityfocus.com/bid/100262 Third Party Advisory, VDB Entry
cve@mitre.org http://www.securitytracker.com/id/1039162 Third Party Advisory, VDB Entry
cve@mitre.org https://access.redhat.com/errata/RHSA-2017:2918 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2017:2930 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2017:2931 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2017:3200 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2019:1931 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2019:1932 Third Party Advisory
cve@mitre.org https://access.redhat.com/errata/RHSA-2019:4159 Third Party Advisory
cve@mitre.org https://github.com/xairy/kernel-exploits/tree/master/CVE-2017-1000112 Third Party Advisory
cve@mitre.org https://www.exploit-db.com/exploits/45147/ Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 http://seclists.org/oss-sec/2017/q3/277 Mailing List, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.debian.org/security/2017/dsa-3981 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 http://www.securityfocus.com/bid/100262 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 http://www.securitytracker.com/id/1039162 Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2017:2918 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2017:2930 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2017:2931 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2017:3200 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2019:1931 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2019:1932 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://access.redhat.com/errata/RHSA-2019:4159 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://github.com/xairy/kernel-exploits/tree/master/CVE-2017-1000112 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.exploit-db.com/exploits/45147/ Third Party Advisory, VDB Entry
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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  }
}


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