SUSE SLES12 Security Update : kernel (SUSE-SU-2021:3972-1)

high Nessus Plugin ID 155959

Language:

Synopsis

The remote SUSE host is missing one or more security updates.

Description

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3972-1 advisory.

- The inode_init_owner function in fs/inode.c in the Linux kernel through 3.16 allows local users to create files with an unintended group ownership, in a scenario where a directory is SGID to a certain group and is writable by a user who is not a member of that group. Here, the non-member can trigger creation of a plain file whose group ownership is that group. The intended behavior was that the non-member can trigger creation of a directory (but not a plain file) whose group ownership is that group. The non-member can escalate privileges by making the plain file executable and SGID. (CVE-2018-13405)

- In pppol2tp_connect, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Product: Android. Versions: Android kernel. Android ID: A-38159931. (CVE-2018-9517)

- The SCTP socket buffer used by a userspace application is not accounted by the cgroups subsystem. An attacker can use this flaw to cause a denial of service attack. Kernel 3.10.x and 4.18.x branches are believed to be vulnerable. (CVE-2019-3874)

- An infinite loop issue was found in the vhost_net kernel module in Linux Kernel up to and including v5.1-rc6, while handling incoming packets in handle_rx(). It could occur if one end sends packets faster than the other end can process them. A guest user, maybe remote one, could use this flaw to stall the vhost_net kernel thread, resulting in a DoS scenario. (CVE-2019-3900)

- In l2tp_session_delete and related functions of l2tp_core.c, there is possible memory corruption due to a use after free. This could lead to local escalation of privilege with System execution privileges needed.
User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID:
A-152735806 (CVE-2020-0429)

- An issue was discovered in the Linux kernel through 5.6.11. sg_write lacks an sg_remove_request call in a certain failure case, aka CID-83c6f2390040. (CVE-2020-12770)

- u'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables, Snapdragon Wired Infrastructure and Networking in APQ8053, IPQ4019, IPQ8064, MSM8909W, MSM8996AU, QCA9531, QCN5502, QCS405, SDX20, SM6150, SM7150 (CVE-2020-3702)

- In bpf_skb_change_head of filter.c, there is a possible out of bounds read due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-154177719References:
Upstream kernel (CVE-2021-0941)

- A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to allow the ability to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass the source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. (CVE-2021-20322)

- An issue was discovered in Linux: KVM through Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still accessible by the VMM and guest. This allows users with the ability to start and control a VM to read/write random pages of memory and can result in local privilege escalation. (CVE-2021-22543)

- An out-of-bounds (OOB) memory write flaw was found in list_devices in drivers/md/dm-ioctl.c in the Multi- device driver module in the Linux kernel before 5.12. A bound check failure allows an attacker with special user (CAP_SYS_ADMIN) privilege to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability. (CVE-2021-31916)

- In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack. (CVE-2021-34556)

- A flaw was found in the Linux kernel's CAPI over Bluetooth connection code. An attacker with a local account can escalate privileges when CAPI (ISDN) hardware connection fails. (CVE-2021-34981)

- In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation does not necessarily occur before a store operation that has an attacker-controlled value.
(CVE-2021-35477)

- A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.
(CVE-2021-3640)

- A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the int_ctl field, this issue could allow a malicious L1 to enable AVIC support (Advanced Virtual Interrupt Controller) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. This flaw affects Linux kernel versions prior to 5.14-rc7. (CVE-2021-3653)

- A vulnerability was found in the Linux kernel in versions prior to v5.14-rc1. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory. (CVE-2021-3655)

- A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB (virtual machine control block) provided by the L1 guest to spawn/handle a nested guest (L2). Due to improper validation of the virt_ext field, this issue could allow a malicious L1 to disable both VMLOAD/VMSAVE intercepts and VLS (Virtual VMLOAD/VMSAVE) for the L2 guest. As a result, the L2 guest would be allowed to read/write physical pages of the host, resulting in a crash of the entire system, leak of sensitive data or potential guest-to-host escape. (CVE-2021-3656)

- A NULL pointer dereference flaw was found in the Linux kernel's IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability. (CVE-2021-3659)

- A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.
(CVE-2021-3679)

- A flaw was found in the Routing decision classifier in the Linux kernel's Traffic Control networking subsystem in the way it handled changing of classification filters, leading to a use-after-free condition.
This flaw allows unprivileged local users to escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3715)

- hso_free_net_device in drivers/net/usb/hso.c in the Linux kernel through 5.13.4 calls unregister_netdev without checking for the NETREG_REGISTERED state, leading to a use-after-free and a double free.
(CVE-2021-37159)

- A flaw was found in the Linux kernel's OverlayFS subsystem in the way the user mounts the TmpFS filesystem with OverlayFS. This flaw allows a local user to gain access to hidden files that should not be accessible. (CVE-2021-3732)

- A memory leak flaw was found in the Linux kernel in the ccp_run_aes_gcm_cmd() function in drivers/crypto/ccp/ccp-ops.c, which allows attackers to cause a denial of service (memory consumption).
This vulnerability is similar with the older CVE-2019-18808. (CVE-2021-3744)

- A use-after-free flaw was found in the Linux kernel's Bluetooth subsystem in the way user calls connect to the socket and disconnect simultaneously due to a race condition. This flaw allows a user to crash the system or escalate their privileges. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-3752)

- A race problem was seen in the vt_k_ioctl in drivers/tty/vt/vt_ioctl.c in the Linux kernel, which may cause an out of bounds read in vt as the write access to vc_mode is not protected by lock-in vt_ioctl (KDSETMDE). The highest threat from this vulnerability is to data confidentiality. (CVE-2021-3753)

- arch/powerpc/kvm/book3s_rtas.c in the Linux kernel through 5.13.5 on the powerpc platform allows KVM guest OS users to cause host OS memory corruption via rtas_args.nargs, aka CID-f62f3c20647e. (CVE-2021-37576)

- A memory overflow vulnerability was found in the Linux kernel's ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability. (CVE-2021-3759)

- A flaw was found in the Linux kernel. A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability. (CVE-2021-3760)

- A memory leak flaw was found in the Linux kernel's ccp_run_aes_gcm_cmd() function that allows an attacker to cause a denial of service. The vulnerability is similar to the older CVE-2019-18808. The highest threat from this vulnerability is to system availability. (CVE-2021-3764)

- A flaw was found in the Linux SCTP stack. A blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses. (CVE-2021-3772)

- ** DISPUTED ** In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE:
the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the length validation was added solely for robustness in the face of anomalous host OS behavior.
(CVE-2021-38160)

- arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault. (CVE-2021-38198)

- drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations. (CVE-2021-38204)

- A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13. (CVE-2021-40490)

- prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write. (CVE-2021-41864)

- The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds write. Input from a process that has the CAP_NET_ADMIN capability can lead to root access.
(CVE-2021-42008)

- An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes. (CVE-2021-42252)

- A heap-based buffer overflow flaw was found in the Linux kernel FireDTV media card driver, where the user calls the CA_SEND_MSG ioctl. This flaw allows a local user of the host machine to crash the system or escalate privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. (CVE-2021-42739)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1087082

https://bugzilla.suse.com/1100416

https://bugzilla.suse.com/1108488

https://bugzilla.suse.com/1129735

https://bugzilla.suse.com/1129898

https://bugzilla.suse.com/1133374

https://bugzilla.suse.com/1153720

https://bugzilla.suse.com/1171420

https://bugzilla.suse.com/1176724

https://bugzilla.suse.com/1176931

https://bugzilla.suse.com/1180624

https://bugzilla.suse.com/1181854

https://bugzilla.suse.com/1181855

https://bugzilla.suse.com/1183050

https://bugzilla.suse.com/1183861

https://bugzilla.suse.com/1184673

https://bugzilla.suse.com/1184804

https://bugzilla.suse.com/1185377

https://bugzilla.suse.com/1185677

https://bugzilla.suse.com/1185726

https://bugzilla.suse.com/1185727

https://bugzilla.suse.com/1185758

https://bugzilla.suse.com/1185973

https://bugzilla.suse.com/1186063

https://bugzilla.suse.com/1186482

https://bugzilla.suse.com/1186483

https://bugzilla.suse.com/1186672

https://bugzilla.suse.com/1188026

https://bugzilla.suse.com/1188172

https://bugzilla.suse.com/1188563

https://bugzilla.suse.com/1188601

https://bugzilla.suse.com/1188613

https://bugzilla.suse.com/1188838

https://bugzilla.suse.com/1188842

https://bugzilla.suse.com/1188876

https://bugzilla.suse.com/1188983

https://bugzilla.suse.com/1188985

https://bugzilla.suse.com/1189057

https://bugzilla.suse.com/1189262

https://bugzilla.suse.com/1189278

https://bugzilla.suse.com/1189291

https://bugzilla.suse.com/1189399

https://bugzilla.suse.com/1189400

https://bugzilla.suse.com/1189418

https://bugzilla.suse.com/1189420

https://bugzilla.suse.com/1189706

https://bugzilla.suse.com/1189846

https://bugzilla.suse.com/1189884

https://bugzilla.suse.com/1190023

https://bugzilla.suse.com/1190025

https://bugzilla.suse.com/1190067

https://bugzilla.suse.com/1190115

https://bugzilla.suse.com/1190117

https://bugzilla.suse.com/1190118

https://bugzilla.suse.com/1190159

https://bugzilla.suse.com/1190276

https://bugzilla.suse.com/1190349

https://bugzilla.suse.com/1190350

https://bugzilla.suse.com/1190351

https://bugzilla.suse.com/1190432

https://bugzilla.suse.com/1190479

https://bugzilla.suse.com/1190534

https://bugzilla.suse.com/1190601

https://bugzilla.suse.com/1190717

https://bugzilla.suse.com/1191193

https://bugzilla.suse.com/1191315

https://bugzilla.suse.com/1191317

https://bugzilla.suse.com/1191318

https://bugzilla.suse.com/1191529

https://bugzilla.suse.com/1191530

https://bugzilla.suse.com/1191628

https://bugzilla.suse.com/1191660

https://bugzilla.suse.com/1191790

https://bugzilla.suse.com/1191801

https://bugzilla.suse.com/1191813

https://bugzilla.suse.com/1191961

https://bugzilla.suse.com/1192036

https://bugzilla.suse.com/1192045

https://bugzilla.suse.com/1192048

https://bugzilla.suse.com/1192267

https://bugzilla.suse.com/1192379

https://bugzilla.suse.com/1192400

https://bugzilla.suse.com/1192444

https://bugzilla.suse.com/1192549

https://bugzilla.suse.com/1192775

https://bugzilla.suse.com/1192781

https://bugzilla.suse.com/1192802

https://www.suse.com/security/cve/CVE-2018-13405

https://www.suse.com/security/cve/CVE-2018-9517

https://www.suse.com/security/cve/CVE-2019-3874

https://www.suse.com/security/cve/CVE-2019-3900

https://www.suse.com/security/cve/CVE-2020-0429

https://www.suse.com/security/cve/CVE-2020-12770

https://www.suse.com/security/cve/CVE-2020-3702

https://www.suse.com/security/cve/CVE-2021-0941

https://www.suse.com/security/cve/CVE-2021-20322

https://www.suse.com/security/cve/CVE-2021-22543

https://www.suse.com/security/cve/CVE-2021-31916

https://www.suse.com/security/cve/CVE-2021-34556

https://www.suse.com/security/cve/CVE-2021-34981

https://www.suse.com/security/cve/CVE-2021-3542

https://www.suse.com/security/cve/CVE-2021-35477

https://www.suse.com/security/cve/CVE-2021-3640

https://www.suse.com/security/cve/CVE-2021-3653

https://www.suse.com/security/cve/CVE-2021-3655

https://www.suse.com/security/cve/CVE-2021-3656

https://www.suse.com/security/cve/CVE-2021-3659

https://www.suse.com/security/cve/CVE-2021-3679

https://www.suse.com/security/cve/CVE-2021-3715

https://www.suse.com/security/cve/CVE-2021-37159

https://www.suse.com/security/cve/CVE-2021-3732

https://www.suse.com/security/cve/CVE-2021-3744

https://www.suse.com/security/cve/CVE-2021-3752

https://www.suse.com/security/cve/CVE-2021-3753

https://www.suse.com/security/cve/CVE-2021-37576

https://www.suse.com/security/cve/CVE-2021-3759

https://www.suse.com/security/cve/CVE-2021-3760

https://www.suse.com/security/cve/CVE-2021-3764

https://www.suse.com/security/cve/CVE-2021-3772

https://www.suse.com/security/cve/CVE-2021-38160

https://www.suse.com/security/cve/CVE-2021-38198

https://www.suse.com/security/cve/CVE-2021-38204

https://www.suse.com/security/cve/CVE-2021-40490

https://www.suse.com/security/cve/CVE-2021-41864

https://www.suse.com/security/cve/CVE-2021-42008

https://www.suse.com/security/cve/CVE-2021-42252

https://www.suse.com/security/cve/CVE-2021-42739

http://www.nessus.org/u?6d4473a3

Plugin Details

Severity: High

ID: 155959

File Name: suse_SU-2021-3972-1.nasl

Version: 1.8

Type: local

Agent: unix

Published: 12/9/2021

Updated: 7/13/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.9

Temporal Score: 6.5

Vector: CVSS2#AV:A/AC:M/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2021-3752

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 8.2

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

CVSS Score Source: CVE-2021-3656

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:cluster-md-kmp-default, p-cpe:/a:novell:suse_linux:dlm-kmp-default, p-cpe:/a:novell:suse_linux:gfs2-kmp-default, p-cpe:/a:novell:suse_linux:kernel-default, p-cpe:/a:novell:suse_linux:kernel-default-base, p-cpe:/a:novell:suse_linux:kernel-default-devel, p-cpe:/a:novell:suse_linux:kernel-default-kgraft, p-cpe:/a:novell:suse_linux:kernel-default-kgraft-devel, p-cpe:/a:novell:suse_linux:kernel-default-man, p-cpe:/a:novell:suse_linux:kernel-devel, p-cpe:/a:novell:suse_linux:kernel-macros, p-cpe:/a:novell:suse_linux:kernel-source, p-cpe:/a:novell:suse_linux:kernel-syms, p-cpe:/a:novell:suse_linux:kgraft-patch-4_12_14-95_83-default, p-cpe:/a:novell:suse_linux:ocfs2-kmp-default, cpe:/o:novell:suse_linux:12

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/8/2021

Vulnerability Publication Date: 7/6/2018

Reference Information

CVE: CVE-2018-13405, CVE-2018-9517, CVE-2019-3874, CVE-2019-3900, CVE-2020-0429, CVE-2020-12770, CVE-2020-3702, CVE-2021-0941, CVE-2021-20322, CVE-2021-22543, CVE-2021-31916, CVE-2021-34556, CVE-2021-34981, CVE-2021-3542, CVE-2021-35477, CVE-2021-3640, CVE-2021-3653, CVE-2021-3655, CVE-2021-3656, CVE-2021-3659, CVE-2021-3679, CVE-2021-3715, CVE-2021-37159, CVE-2021-3732, CVE-2021-3744, CVE-2021-3752, CVE-2021-3753, CVE-2021-37576, CVE-2021-3759, CVE-2021-3760, CVE-2021-3764, CVE-2021-3772, CVE-2021-38160, CVE-2021-38198, CVE-2021-38204, CVE-2021-40490, CVE-2021-41864, CVE-2021-42008, CVE-2021-42252, CVE-2021-42739

SuSE: SUSE-SU-2021:3972-1