SUSE SLES12 Security Update : kernel (SUSE-SU-2023:4735-1)

high Nessus Plugin ID 186950

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Synopsis

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

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:4735-1 advisory.

- There is a use-after-free vulnerability in the Linux Kernel which can be exploited to achieve local privilege escalation. To reach the vulnerability kernel configuration flag CONFIG_TLS or CONFIG_XFRM_ESPINTCP has to be configured, but the operation does not require any privilege. There is a use-after-free bug of icsk_ulp_data of a struct inet_connection_sock. When CONFIG_TLS is enabled, user can install a tls context (struct tls_context) on a connected tcp socket. The context is not cleared if this socket is disconnected and reused as a listener. If a new socket is created from the listener, the context is inherited and vulnerable. The setsockopt TCP_ULP operation does not require any privilege. We recommend upgrading past commit 2c02d41d71f90a5168391b6a5f2954112ba2307c (CVE-2023-0461)

- An issue was discovered in drivers/bluetooth/hci_ldisc.c in the Linux kernel 6.2. In hci_uart_tty_ioctl, there is a race condition between HCIUARTSETPROTO and HCIUARTGETPROTO. HCI_UART_PROTO_SET is set before hu->proto is set. A NULL pointer dereference may occur. (CVE-2023-31083)

- A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation. (CVE-2023-39198)

- An issue was discovered in lib/kobject.c in the Linux kernel before 6.2.3. With root access, an attacker can trigger a race condition that results in a fill_kobj_path out-of-bounds write. (CVE-2023-45863)

- An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel before 6.5.3. A buffer size may not be adequate for frames larger than the MTU. (CVE-2023-45871)

- A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events (perf) component can be exploited to achieve local privilege escalation. If perf_read_group() is called while an event's sibling_list is smaller than its child's sibling_list, it can increment or write to memory locations outside of the allocated buffer. We recommend upgrading past commit 32671e3799ca2e4590773fd0e63aaa4229e50c06. (CVE-2023-5717)

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/1084909

https://bugzilla.suse.com/1176950

https://bugzilla.suse.com/1190208

https://bugzilla.suse.com/1203496

https://bugzilla.suse.com/1205462

https://bugzilla.suse.com/1208787

https://bugzilla.suse.com/1210780

https://bugzilla.suse.com/1214037

https://bugzilla.suse.com/1214285

https://bugzilla.suse.com/1214408

https://bugzilla.suse.com/1214764

https://bugzilla.suse.com/1216031

https://bugzilla.suse.com/1216058

https://bugzilla.suse.com/1216259

https://bugzilla.suse.com/1216584

https://bugzilla.suse.com/1216759

https://bugzilla.suse.com/1216965

https://bugzilla.suse.com/1216976

https://bugzilla.suse.com/1217036

https://bugzilla.suse.com/1217087

https://bugzilla.suse.com/1217206

https://bugzilla.suse.com/1217519

https://bugzilla.suse.com/1217525

https://bugzilla.suse.com/1217603

https://bugzilla.suse.com/1217604

https://bugzilla.suse.com/1217607

http://www.nessus.org/u?40f05206

https://www.suse.com/security/cve/CVE-2023-0461

https://www.suse.com/security/cve/CVE-2023-31083

https://www.suse.com/security/cve/CVE-2023-39197

https://www.suse.com/security/cve/CVE-2023-39198

https://www.suse.com/security/cve/CVE-2023-45863

https://www.suse.com/security/cve/CVE-2023-45871

https://www.suse.com/security/cve/CVE-2023-5717

Plugin Details

Severity: High

ID: 186950

File Name: suse_SU-2023-4735-1.nasl

Version: 1.2

Type: local

Agent: unix

Published: 12/15/2023

Updated: 1/30/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2023-39197

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/RL:O/RC:C

CVSS Score Source: CVE-2023-5717

Vulnerability Information

CPE: p-cpe:/a:novell:suse_linux:dlm-kmp-rt, p-cpe:/a:novell:suse_linux:kernel-rt-devel, p-cpe:/a:novell:suse_linux:kernel-source-rt, cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:kernel-rt-base, p-cpe:/a:novell:suse_linux:gfs2-kmp-rt, p-cpe:/a:novell:suse_linux:kernel-syms-rt, p-cpe:/a:novell:suse_linux:cluster-md-kmp-rt, p-cpe:/a:novell:suse_linux:kernel-rt_debug-devel, p-cpe:/a:novell:suse_linux:kernel-rt_debug, p-cpe:/a:novell:suse_linux:kernel-rt, p-cpe:/a:novell:suse_linux:ocfs2-kmp-rt, p-cpe:/a:novell:suse_linux:kernel-devel-rt

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

Exploit Ease: No known exploits are available

Patch Publication Date: 12/12/2023

Vulnerability Publication Date: 2/28/2023

Reference Information

CVE: CVE-2023-0461, CVE-2023-31083, CVE-2023-39197, CVE-2023-39198, CVE-2023-45863, CVE-2023-45871, CVE-2023-5717

SuSE: SUSE-SU-2023:4735-1