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AUSCERT External Security Bulletin Redistribution
SUSE Security Update: Security update for the Linux Kernel
(Live Patch 38 for SLE 12)
23 October 2018
AusCERT Security Bulletin Summary
Product: Linux Kernel
Operating System: SUSE
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
CVE Names: CVE-2018-14633 CVE-2018-5390
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SUSE Security Update: Security update for the Linux Kernel (Live Patch 38 for SLE 12)
Announcement ID: SUSE-SU-2018:3265-1
References: #1102682 #1107832
Cross-References: CVE-2018-14633 CVE-2018-5390
SUSE Linux Enterprise Server 12-LTSS
An update that fixes two vulnerabilities is now available.
This update for the Linux Kernel 3.12.61-52_146 fixes several issues.
The following security issues were fixed:
- CVE-2018-14633: A security flaw was found in the
chap_server_compute_md5() function in the ISCSI target code in the Linux
kernel in a way an authentication request from an ISCSI initiator is
processed. An unauthenticated remote attacker can cause a stack buffer
overflow and smash up to 17 bytes of the stack. The attack requires the
iSCSI target to be enabled on the victim host. Depending on how the
target's code was built (i.e. depending on a compiler, compile flags and
hardware architecture) an attack may lead to a system crash and thus to
a denial-of-service or possibly to a non-authorized access to data
exported by an iSCSI target. Due to the nature of the flaw, privilege
escalation cannot be fully ruled out, although we believe it is highly
- CVE-2018-5390: The Linux kernel could be forced to make very expensive
calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue() for every
incoming packet which can lead to a denial of service (bsc#1102682).
To install this SUSE Security 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 Server 12-LTSS:
zypper in -t patch SUSE-SLE-SERVER-12-2018-2355=1
- SUSE Linux Enterprise Server 12-LTSS (x86_64):
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