SUSE SLES12 Security Update : kernel (SUSE-SU-2023:1801-1)

high Nessus Plugin ID 174050

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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-2023:1801-1 advisory.

- Systems with microprocessors utilizing speculative execution and branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis.
(CVE-2017-5753)

- A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a privileged local account can leak kernel stack information when issuing commands to the /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it can be further used to defeat existing kernel protection mechanisms. (CVE-2021-3923)

- In pppol2tp_create of l2tp_ppp.c, there is a possible use after free due to a race condition. 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-186777253References:
Upstream kernel (CVE-2022-20567)

- A use-after-free flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux Kernel due to a race problem. This flaw leads to a denial of service issue. If patch ebda44da44f6 (net: sched: fix race condition in qdisc_graft()) not applied yet, then kernel could be affected. (CVE-2023-0590)

- A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAP_NET_ADMIN, it may not always be the case, e.g., a non-root user only having that capability. This would make tun/tap sockets being incorrectly treated in filtering/routing decisions, possibly bypassing network filters. (CVE-2023-1076)

- In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the transaction object. nft_trans_destroy() calls list_del(), but the transaction was never placed on a list
-- the list head is all zeroes, this results in a NULL pointer dereference. (CVE-2023-1095)

- Use After Free vulnerability in Linux kernel traffic control index filter (tcindex) allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use- after-free when 'tcf_exts_exec()' is called with the destroyed tcf_ext. A local attacker user can use this vulnerability to elevate its privileges to root. This issue affects Linux Kernel: from 4.14 before git commit ee059170b1f7e94e55fa6cadee544e176a6e59c2. (CVE-2023-1281)

- A remote denial of service vulnerability was found in the Linux kernel's TIPC kernel module. The while loop in tipc_link_xmit() hits an unknown state while attempting to parse SKBs, which are not in the queue.
Sending two small UDP packets to a system with a UDP bearer results in the CPU utilization for the system to instantly spike to 100%, causing a denial of service condition. (CVE-2023-1390)

- A flaw was found in KVM. When calling the KVM_GET_DEBUGREGS ioctl, on 32-bit systems, there might be some uninitialized portions of the kvm_debugregs structure that could be copied to userspace, causing an information leak. (CVE-2023-1513)

- cbq_classify in net/sched/sch_cbq.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23454)

- atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel through 6.1.4 allows attackers to cause a denial of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23455)

- A NULL pointer dereference flaw was found in the az6027 driver in drivers/media/usb/dev-usb/az6027.c in the Linux Kernel. The message from user space is not checked properly before transferring into the device.
This flaw allows a local user to crash the system or potentially cause a denial of service.
(CVE-2023-28328)

- hci_conn_cleanup in net/bluetooth/hci_conn.c in the Linux kernel through 6.2.9 has a use-after-free (observed in hci_conn_hash_flush) because of calls to hci_dev_put and hci_conn_put. There is a double free that may lead to privilege escalation. (CVE-2023-28464)

- An issue was discovered in the Linux kernel before 5.13.3. lib/seq_buf.c has a seq_buf_putmem_hex buffer overflow. (CVE-2023-28772)

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/1065729

https://bugzilla.suse.com/1076830

https://bugzilla.suse.com/1109158

https://bugzilla.suse.com/1181001

https://bugzilla.suse.com/1193231

https://bugzilla.suse.com/1199837

https://bugzilla.suse.com/1203693

https://bugzilla.suse.com/1206010

https://bugzilla.suse.com/1207001

https://bugzilla.suse.com/1207036

https://bugzilla.suse.com/1207125

https://bugzilla.suse.com/1207795

https://bugzilla.suse.com/1207890

https://bugzilla.suse.com/1208048

https://bugzilla.suse.com/1208599

https://bugzilla.suse.com/1208777

https://bugzilla.suse.com/1208850

https://bugzilla.suse.com/1209052

https://bugzilla.suse.com/1209118

https://bugzilla.suse.com/1209126

https://bugzilla.suse.com/1209256

https://bugzilla.suse.com/1209289

https://bugzilla.suse.com/1209291

https://bugzilla.suse.com/1209292

https://bugzilla.suse.com/1209532

https://bugzilla.suse.com/1209547

https://bugzilla.suse.com/1209549

https://bugzilla.suse.com/1209556

https://bugzilla.suse.com/1209572

https://bugzilla.suse.com/1209634

https://bugzilla.suse.com/1209684

https://bugzilla.suse.com/1209778

https://bugzilla.suse.com/1209798

https://lists.suse.com/pipermail/sle-updates/2023-April/028741.html

https://www.suse.com/security/cve/CVE-2017-5753

https://www.suse.com/security/cve/CVE-2021-3923

https://www.suse.com/security/cve/CVE-2022-20567

https://www.suse.com/security/cve/CVE-2023-0590

https://www.suse.com/security/cve/CVE-2023-1076

https://www.suse.com/security/cve/CVE-2023-1095

https://www.suse.com/security/cve/CVE-2023-1281

https://www.suse.com/security/cve/CVE-2023-1390

https://www.suse.com/security/cve/CVE-2023-1513

https://www.suse.com/security/cve/CVE-2023-23454

https://www.suse.com/security/cve/CVE-2023-23455

https://www.suse.com/security/cve/CVE-2023-28328

https://www.suse.com/security/cve/CVE-2023-28464

https://www.suse.com/security/cve/CVE-2023-28772

Plugin Details

Severity: High

ID: 174050

File Name: suse_SU-2023-1801-1.nasl

Version: 1.4

Type: local

Agent: unix

Published: 4/11/2023

Updated: 7/14/2023

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

Risk Information

VPR

Risk Factor: High

Score: 8.4

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 4.1

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

CVSS Score Source: CVE-2017-5753

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

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

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

CVSS Score Source: CVE-2023-28464

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:kernel-source-azure, p-cpe:/a:novell:suse_linux:kernel-azure-devel, p-cpe:/a:novell:suse_linux:kernel-azure, p-cpe:/a:novell:suse_linux:kernel-syms-azure, p-cpe:/a:novell:suse_linux:kernel-devel-azure, cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:kernel-azure-base

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: 4/10/2023

Vulnerability Publication Date: 1/3/2018

Exploitable With

CANVAS (CANVAS)

Reference Information

CVE: CVE-2017-5753, CVE-2021-3923, CVE-2022-20567, CVE-2023-0590, CVE-2023-1076, CVE-2023-1095, CVE-2023-1281, CVE-2023-1390, CVE-2023-1513, CVE-2023-23454, CVE-2023-23455, CVE-2023-28328, CVE-2023-28464, CVE-2023-28772

SuSE: SUSE-SU-2023:1801-1