CVE-2017-7184
First published: Sun Mar 19 2017(Updated: )
The xfrm_replay_verify_len function in net/xfrm/xfrm_user.c in the Linux kernel through 4.10.6 does not validate certain size data after an XFRM_MSG_NEWAE update, which allows local users to obtain root privileges or cause a denial of service (heap-based out-of-bounds access) by leveraging the CAP_NET_ADMIN capability, as demonstrated during a Pwn2Own competition at CanSecWest 2017 for the Ubuntu 16.10 linux-image-* package 4.8.0.41.52.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | =4.8 | |
| Canonical Ubuntu Linux | =16.10 | |
| Linux Linux kernel | <3.2.89 | |
| Linux Linux kernel | >=3.3<3.10.106 | |
| Linux Linux kernel | >=3.11<3.12.73 | |
| Linux Linux kernel | >=3.13<3.16.44 | |
| Linux Linux kernel | >=3.17<3.18.49 | |
| Linux Linux kernel | >=3.19<4.1.49 | |
| Linux Linux kernel | >=4.2<4.4.59 | |
| Linux Linux kernel | >=4.5<4.9.20 | |
| Linux Linux kernel | >=4.10<4.10.8 | |
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Reference Links
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=677e806da4d916052585301785d847c3b3e6186a
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f843ee6dd019bcece3e74e76ad9df0155655d0df
- https://source.android.com/docs/security/bulletin/2017-05-01 (Advisory)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=677e806da4d916052585301785d847c3b3e6186a
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f843ee6dd019bcece3e74e76ad9df0155655d0df
- http://openwall.com/lists/oss-security/2017/03/29/2
- http://www.eweek.com/security/ubuntu-linux-falls-on-day-1-of-pwn2own-hacking-competition
- http://www.securityfocus.com/bid/97018
- http://www.securitytracker.com/id/1038166
- 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-2019:4159
- https://blog.trendmicro.com/results-pwn2own-2017-day-one/
- https://github.com/torvalds/linux/commit/677e806da4d916052585301785d847c3b3e6186a
- https://github.com/torvalds/linux/commit/f843ee6dd019bcece3e74e76ad9df0155655d0df
- https://source.android.com/security/bulletin/2017-05-01
- https://twitter.com/thezdi/status/842126074435665920
- http://seclists.org/oss-sec/2017/q1/689
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1265661&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1265661&action=edit
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1265674&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1265674&action=edit
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1437469
- https://bugzilla.redhat.com/show_bug.cgi?id=1435153
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- collector/redhat-bugzilla
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