[<prev] [next>] [day] [month] [year] [list]
Date: Tue, 30 May 2017 21:12:21 +0200
From: Andrey Konovalov <andreyknvl@...gle.com>
To: oss-security@...ts.openwall.com
Cc: Pray3r <pray3r.z@...il.com>, Dmitry Vyukov <dvyukov@...gle.com>,
Kostya Serebryany <kcc@...gle.com>
Subject: Linux kernel: memory corruptions in IPv4/IPv6 TCP/SCTP/DCCP sockets
A few CVEs were assigned for similar bugs causing kernel memory
corruption (use-after-free followed by a double-free) in IPv4/IPv6
TCP/SCTP/DCCP sockets. The details are below.
The bugs were found with syzkaller.
* CVE-2017-8890
The inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c in
the Linux kernel through 4.10.15 allows attackers to cause a denial of
service (double free) or possibly have unspecified other impact by
leveraging use of the accept system call.
CVE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8890
Fix: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=657831ffc38e30092a2d5f03d385d710eb88b09a
* CVE-2017-9075
The sctp_v6_create_accept_sk function in net/sctp/ipv6.c in the Linux
kernel through 4.11.1 mishandles inheritance, which allows local users
to cause a denial of service or possibly have unspecified other impact
via crafted system calls, a related issue to CVE-2017-8890.
CVE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9075
Fix: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fdcee2cbb8438702ea1b328fb6e0ac5e9a40c7f8
* CVE-2017-9076
The dccp_v6_request_recv_sock function in net/dccp/ipv6.c in the Linux
kernel through 4.11.1 mishandles inheritance, which allows local users
to cause a denial of service or possibly have unspecified other impact
via crafted system calls, a related issue to CVE-2017-8890.
CVE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9076
Fix: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=83eaddab4378db256d00d295bda6ca997cd13a52
* CVE-2017-9077
The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux
kernel through 4.11.1 mishandles inheritance, which allows local users
to cause a denial of service or possibly have unspecified other impact
via crafted system calls, a related issue to CVE-2017-8890.
CVE: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9077
Fix: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=83eaddab4378db256d00d295bda6ca997cd13a52
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
