Oval Definition:oval:org.opensuse.security:def:59893
Revision Date:2020-12-01Version:1
Title:Security update for the Linux Kernel (Important)
Description:



The SUSE Linux Enterprise 12 SP2 kernel version 4.4.121 was updated to receive various security and bugfixes.

The following security bugs were fixed:

- CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel panic. (bsc#1137586).

- CVE-2019-11478: It was possible to send a crafted sequence of SACKs which would fragment the TCP retransmission queue. A remote attacker may have been able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection.

- CVE-2019-11479: It was possible to send a crafted sequence of SACKs which would fragment the RACK send map. A remote attacker may be able to further exploit the fragmented send map to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. This would have resulted in excess resource consumption due to low mss values.

- CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network. (bnc#1136424)

- CVE-2019-12382: An issue was discovered in drm_load_edid_firmware in drivers/gpu/drm/drm_edid_load.c in the Linux kernel There is an unchecked kstrdup of fwstr, which may have allowed an attacker to cause a denial of service (NULL pointer dereference and system crash). (bnc#1136586)

- CVE-2019-5489: The mincore() implementation in mm/mincore.c in the Linux kernel allowed local attackers to observe page cache access patterns of other processes on the same system, potentially allowing sniffing of secret information. (Fixing this affects the output of the fincore program.) Limited remote exploitation may have been possible, as demonstrated by latency differences in accessing public files from an Apache HTTP Server. (bnc#1120843)

- CVE-2019-11833: fs/ext4/extents.c in the Linux kernel did not zero out the unused memory region in the extent tree block, which might have allowed local users to obtain sensitive information by reading uninitialized data in the filesystem. (bnc#1135281)

- CVE-2018-7191: In the tun subsystem in the Linux kernel, dev_get_valid_name was not called before register_netdevice. This allowed local users to cause a denial of service (NULL pointer dereference and panic) via an ioctl(TUNSETIFF) call with a dev name containing a / character. This is similar to CVE-2013-4343. (bnc#1135603)

- CVE-2019-11190: The Linux kernel allowed local users to bypass ASLR on setuid programs (such as /bin/su) because install_exec_creds() is called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the ptrace_may_access() check had a race condition when reading /proc/pid/stat. (bnc#1131543)

- CVE-2019-11815: An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c in the Linux kernel There was a race condition leading to a use-after-free, related to net namespace cleanup. (bnc#1134537)

- CVE-2019-11884: The do_hidp_sock_ioctl function in net/bluetooth/hidp/sock.c in the Linux kernel allowed a local user to obtain potentially sensitive information from kernel stack memory via a HIDPCONNADD command, because a name field may not have ended with a '\0' character. (bnc#1134848)

- CVE-2018-17972: An issue was discovered in the proc_pid_stack function in fs/proc/base.c in the Linux kernel It did not ensure that only root may inspect the kernel stack of an arbitrary task, allowing a local attacker to exploit racy stack unwinding and leak kernel task stack contents. (bnc#1110785)

The following non-security bugs were fixed:

- cifs: keep FileInfo handle live during oplock break (bsc#1106284, bsc#1131565). - ftrace/x86_64: Emulate call function while updating in breakpoint handler (bsc#1099658). - kabi: drop LINUX_MIB_TCPWQUEUETOOBIG snmp counter (bsc#1137586). - kabi: move sysctl_tcp_min_snd_mss to preserve struct net layout (bsc#1137586). - mwifiex: Fix heap overflow in mwifiex_uap_parse_tail_ies() (bsc#1136935). - tcp: add tcp_min_snd_mss sysctl (bsc#1137586). - tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() (bsc#1137586). - tcp: limit payload size of sacked skbs (bsc#1137586). - tcp: tcp_fragment() should apply sane memory limits (bsc#1137586). - x86_64: Add gap to int3 to allow for call emulation (bsc#1099658). - x86_64: Allow breakpoints to emulate call instructions (bsc#1099658). - xen-swiotlb: fix the check condition for xen_swiotlb_free_coherent (bnc#1134596). - xen-swiotlb: use actually allocated size on check physical continuous (bnc#1134596).
Family:unixClass:patch
Status:Reference(s):1056088
1056090
1056093
1056095
1056097
1056101
1056105
1083630
1087200
1099658
1106284
1109465
1110785
1111789
1113769
1117473
1117740
1119947
1120843
1120885
1123022
1123482
1124525
1130116
1131543
1131565
1132374
1132472
1132728
1132729
1132732
1132734
1133810
1134537
1134596
1134718
1134848
1135281
1135603
1136424
1136446
1136586
1136935
1137586
1137597
1140747
1140868
1144903
1145665
1149323
1149792
1153108
1153158
1153161
1154609
1159913
1165631
1168930
1169605
1169786
1169936
1170302
1170741
1170939
CVE-2011-1526
CVE-2011-4862
CVE-2017-12627
CVE-2017-13738
CVE-2017-13739
CVE-2017-13740
CVE-2017-13741
CVE-2017-13743
CVE-2017-13744
CVE-2018-16884
CVE-2018-17972
CVE-2018-19622
CVE-2018-19623
CVE-2018-19624
CVE-2018-19625
CVE-2018-19626
CVE-2018-19627
CVE-2018-7191
CVE-2019-10220
CVE-2019-10245
CVE-2019-11190
CVE-2019-11477
CVE-2019-11477
CVE-2019-11478
CVE-2019-11478
CVE-2019-11479
CVE-2019-11709
CVE-2019-11710
CVE-2019-11711
CVE-2019-11712
CVE-2019-11713
CVE-2019-11714
CVE-2019-11715
CVE-2019-11716
CVE-2019-11717
CVE-2019-11718
CVE-2019-11719
CVE-2019-11720
CVE-2019-11721
CVE-2019-11723
CVE-2019-11724
CVE-2019-11725
CVE-2019-11727
CVE-2019-11728
CVE-2019-11729
CVE-2019-11730
CVE-2019-11733
CVE-2019-11735
CVE-2019-11736
CVE-2019-11738
CVE-2019-11740
CVE-2019-11742
CVE-2019-11743
CVE-2019-11744
CVE-2019-11746
CVE-2019-11747
CVE-2019-11748
CVE-2019-11749
CVE-2019-11750
CVE-2019-11751
CVE-2019-11752
CVE-2019-11753
CVE-2019-11815
CVE-2019-11833
CVE-2019-11884
CVE-2019-12382
CVE-2019-17133
CVE-2019-18197
CVE-2019-2602
CVE-2019-2684
CVE-2019-2697
CVE-2019-2698
CVE-2019-3814
CVE-2019-3846
CVE-2019-3846
CVE-2019-5108
CVE-2019-5489
CVE-2019-7524
CVE-2019-9811
CVE-2019-9812
CVE-2020-11008
CVE-2020-1749
CVE-2020-5260
SUSE-SU-2017:2570-1
SUSE-SU-2018:4298-1
SUSE-SU-2019:1644-1
SUSE-SU-2019:2620-1
SUSE-SU-2020:0920-2
SUSE-SU-2020:1295-1
Platform(s):openSUSE Leap 15.0
openSUSE Leap 15.1
SUSE Linux Enterprise Server 12 SP2-ESPOS
SUSE Linux Enterprise Server 12 SP3
SUSE Linux Enterprise Server 12 SP3-BCL
SUSE Linux Enterprise Server 12 SP3-ESPOS
SUSE Linux Enterprise Server 12 SP3-LTSS
SUSE Linux Enterprise Server 12 SP3-TERADATA
SUSE Linux Enterprise Server 12 SP4
SUSE OpenStack Cloud 8
SUSE OpenStack Cloud 9
SUSE OpenStack Cloud Crowbar 8
Product(s):
Definition Synopsis
  • openSUSE Leap 15.0 is installed
  • AND libcacard0-2.5.3-lp150.1 is installed
    • Definition Synopsis
  • openSUSE Leap 15.1 is installed
  • AND Package Information
  • dbus-1-1.12.2-lp151.4.3 is installed
  • OR dbus-1-devel-1.12.2-lp151.4.3 is installed
  • OR dbus-1-devel-32bit-1.12.2-lp151.4.3 is installed
  • OR dbus-1-devel-doc-1.12.2-lp151.4.3 is installed
  • OR dbus-1-x11-1.12.2-lp151.4.3 is installed
  • OR libdbus-1-3-1.12.2-lp151.4.3 is installed
  • OR libdbus-1-3-32bit-1.12.2-lp151.4.3 is installed
    • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP2-ESPOS is installed
  • AND Package Information
  • kernel-default-4.4.121-92.114 is installed
  • OR kernel-default-base-4.4.121-92.114 is installed
  • OR kernel-default-devel-4.4.121-92.114 is installed
  • OR kernel-devel-4.4.121-92.114 is installed
  • OR kernel-macros-4.4.121-92.114 is installed
  • OR kernel-source-4.4.121-92.114 is installed
  • OR kernel-syms-4.4.121-92.114 is installed
  • OR kgraft-patch-4_4_121-92_114-default-1-3.5 is installed
  • OR kgraft-patch-SLE12-SP2_Update_30-1-3.5 is installed
    • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP3 is installed
  • AND Package Information
  • krb5-appl-clients-1.0.3-1 is installed
  • OR krb5-appl-servers-1.0.3-1 is installed
    • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP3-BCL is installed
  • AND Package Information
  • ghostscript-9.27-23.28 is installed
  • OR ghostscript-x11-9.27-23.28 is installed
    • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP3-ESPOS is installed
  • AND Package Information
  • kgraft-patch-4_4_176-94_88-default-4-2 is installed
  • OR kgraft-patch-SLE12-SP3_Update_24-4-2 is installed
    • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP3-LTSS is installed
  • AND Package Information
  • kgraft-patch-4_4_175-94_79-default-4-2 is installed
  • OR kgraft-patch-SLE12-SP3_Update_23-4-2 is installed
    • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP3-TERADATA is installed
  • AND Package Information
  • openssh-7.2p2-74.23 is installed
  • OR openssh-askpass-gnome-7.2p2-74.23 is installed
  • OR openssh-fips-7.2p2-74.23 is installed
  • OR openssh-helpers-7.2p2-74.23 is installed
    • Definition Synopsis
  • SUSE Linux Enterprise Server 12 SP4 is installed
  • AND Package Information
  • dovecot22-2.2.31-19.11 is installed
  • OR dovecot22-backend-mysql-2.2.31-19.11 is installed
  • OR dovecot22-backend-pgsql-2.2.31-19.11 is installed
  • OR dovecot22-backend-sqlite-2.2.31-19.11 is installed
    • Definition Synopsis
  • SUSE OpenStack Cloud 8 is installed
  • AND Package Information
  • MozillaFirefox-68.1.0-109.89 is installed
  • OR MozillaFirefox-branding-SLE-68-32.8 is installed
  • OR MozillaFirefox-translations-common-68.1.0-109.89 is installed
    • Definition Synopsis
  • SUSE OpenStack Cloud 9 is installed
  • AND python-SQLAlchemy-1.2.10-3.3 is installed
    • Definition Synopsis
  • SUSE OpenStack Cloud Crowbar 8 is installed
  • AND Package Information
  • git-2.26.2-27.36 is installed
  • OR git-core-2.26.2-27.36 is installed
    • BACK