Security update for Linux Kernel Live Patch 7 for SLE 12 SP2
Announcement ID: | SUSE-SU-2017:2064-1 |
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Rating: | important |
References: | |
Cross-References: | |
CVSS scores: |
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Affected Products: |
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An update that solves six vulnerabilities and has two security fixes can now be installed.
Description:
This update for the Linux Kernel 4.4.59-92_17 fixes several issues.
The following security bugs were fixed:
- CVE-2017-7533: A bug in inotify code allowed local users to escalate privilege (bsc#1050751).
- CVE-2017-8797: The NFSv4 server in the Linux kernel did not properly validate the layout type when processing the NFSv4 pNFS GETDEVICEINFO or LAYOUTGET operand in a UDP packet from a remote attacker. This type value is uninitialized upon encountering certain error conditions. This value is used as an array index for dereferencing, which leads to an OOPS and eventually a DoS of knfsd and a soft-lockup of the whole system (bsc#1046202)
- CVE-2017-7645: The NFSv2/NFSv3 server in the nfsd subsystem in the Linux kernel allowed remote attackers to cause a denial of service (system crash) via a long RPC reply, related to net/sunrpc/svc.c, fs/nfsd/nfs3xdr.c, and fs/nfsd/nfsxdr.c (bsc#1046191).
- CVE-2017-9242: The __ip6_append_data function in net/ipv6/ip6_output.c in the Linux kernel is too late in checking whether an overwrite of an skb data structure may occur, which allowed local users to cause a denial of service (system crash) via crafted system calls (bsc#1042892).
- CVE-2017-9077: The tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c in the Linux kernel mishandled inheritance, which allowed 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 (bsc#1042364).
- CVE-2017-8890: The inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c in the Linux kernel allowed attackers to cause a denial of service (double free) or possibly have unspecified other impact by leveraging use of the accept system call (bsc#1038564).
The following non-security bug was fixed:
- Fix for a btrfs deadlock between btrfs-cleaner and user space thread regression, which could cause spurious WARN_ON's from fs/btrfs/qgroup.c:1445 during patch application if BTRFS quota groups are enabled. (bsc#1047518)
Patch Instructions:
To install this SUSE update use the SUSE recommended
installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
-
SUSE Linux Enterprise Live Patching 12
zypper in -t patch SUSE-SLE-Live-Patching-12-2017-1264=1 SUSE-SLE-Live-Patching-12-2017-1258=1 SUSE-SLE-Live-Patching-12-2017-1266=1
Package List:
-
SUSE Linux Enterprise Live Patching 12 (x86_64)
- kgraft-patch-4_4_59-92_17-default-3-2.1
- kgraft-patch-4_4_59-92_20-default-3-2.1
- kgraft-patch-4_4_59-92_24-default-2-2.1
References:
- https://www.suse.com/security/cve/CVE-2017-7533.html
- https://www.suse.com/security/cve/CVE-2017-7645.html
- https://www.suse.com/security/cve/CVE-2017-8797.html
- https://www.suse.com/security/cve/CVE-2017-8890.html
- https://www.suse.com/security/cve/CVE-2017-9077.html
- https://www.suse.com/security/cve/CVE-2017-9242.html
- https://bugzilla.suse.com/show_bug.cgi?id=1038564
- https://bugzilla.suse.com/show_bug.cgi?id=1042364
- https://bugzilla.suse.com/show_bug.cgi?id=1042892
- https://bugzilla.suse.com/show_bug.cgi?id=1046191
- https://bugzilla.suse.com/show_bug.cgi?id=1046202
- https://bugzilla.suse.com/show_bug.cgi?id=1046206
- https://bugzilla.suse.com/show_bug.cgi?id=1047518
- https://bugzilla.suse.com/show_bug.cgi?id=1050751