CVE-2017-1000112
See a problem?- Source
- https://nvd.nist.gov/vuln/detail/CVE-2017-1000112
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-1000112.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2017-1000112
- Related
- Published
- 2017-10-05T01:29:04Z
- Modified
- 2024-06-30T12:01:22Z
- Severity
-
- 7.0 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Linux kernel: Exploitable memory corruption due to UFO to non-UFO path switch. When building a UFO packet with MSGMORE _ipappenddata() calls ipufoappenddata() 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 = skbprev->len - maxfraglen. Fraggap can exceed MTU, causing copy = datalen - transhdrlen - fraggap to become negative. Subsequently skbcopyandcsumbits() 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
-
- http://www.debian.org/security/2017/dsa-3981
- http://www.securityfocus.com/bid/100262
- http://www.securitytracker.com/id/1039162
- https://access.redhat.com/errata/RHSA-2017:2918
- https://access.redhat.com/errata/RHSA-2017:2930
- https://access.redhat.com/errata/RHSA-2017:2931
- https://access.redhat.com/errata/RHSA-2017:3200
- https://access.redhat.com/errata/RHSA-2019:1931
- https://access.redhat.com/errata/RHSA-2019:1932
- https://access.redhat.com/errata/RHSA-2019:4159
- https://www.exploit-db.com/exploits/45147/
- http://seclists.org/oss-sec/2017/q3/277
- https://github.com/xairy/kernel-exploits/tree/master/CVE-2017-1000112
- https://security-tracker.debian.org/tracker/CVE-2017-1000112
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source