openSUSE 15 Security Update : kernel (openSUSE-SU-2021:2427-1)

high Nessus Plugin ID 151935
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

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

Description

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:2427-1 advisory.

- The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated.
Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets. (CVE-2020-24588)

- Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 through 5.2 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time. (CVE-2020-26558)

- An issue was discovered in the Linux kernel before 5.10. drivers/infiniband/core/ucma.c has a use-after- free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c. (CVE-2020-36385)

- An issue was discovered in the Linux kernel before 5.8.1. net/bluetooth/hci_event.c has a slab out-of- bounds read in hci_extended_inquiry_result_evt, aka CID-51c19bf3d5cf. (CVE-2020-36386)

- Improper access control in BlueZ may allow an authenticated user to potentially enable information disclosure via adjacent access. (CVE-2021-0129)

- In __hidinput_change_resolution_multipliers of hid-input.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-173843328References: Upstream kernel (CVE-2021-0512)

- In pfkey_dump of af_key.c, there is a possible out-of-bounds read due to a missing bounds check. This could lead to local information disclosure in the kernel with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-110373476 (CVE-2021-0605)

- A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c.
This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space (CVE-2021-22555)

- kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corner case where the off reg causes a masking direction change, which then results in an incorrect final aux->alu_limit.
(CVE-2021-33200)

- In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db. (CVE-2021-33624)

- fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05. (CVE-2021-33909)

- net/can/bcm.c in the Linux kernel through 5.12.10 allows local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (CVE-2021-34693)

- To fix this vulnerability, update the affected packages: linux linux-esx (CVE-2021-3609)

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

Solution

Update the affected packages.

See Also

https://bugzilla.suse.com/1153720

https://bugzilla.suse.com/1174978

https://bugzilla.suse.com/1179610

https://bugzilla.suse.com/1181193

https://bugzilla.suse.com/1185428

https://bugzilla.suse.com/1185701

https://bugzilla.suse.com/1185861

https://bugzilla.suse.com/1186463

https://bugzilla.suse.com/1186484

https://bugzilla.suse.com/1187038

https://bugzilla.suse.com/1187050

https://bugzilla.suse.com/1187215

https://bugzilla.suse.com/1187452

https://bugzilla.suse.com/1187554

https://bugzilla.suse.com/1187595

https://bugzilla.suse.com/1187601

https://bugzilla.suse.com/1188062

https://bugzilla.suse.com/1188116

http://www.nessus.org/u?dc95bac9

https://www.suse.com/security/cve/CVE-2020-24588

https://www.suse.com/security/cve/CVE-2020-26558

https://www.suse.com/security/cve/CVE-2020-36385

https://www.suse.com/security/cve/CVE-2020-36386

https://www.suse.com/security/cve/CVE-2021-0129

https://www.suse.com/security/cve/CVE-2021-0512

https://www.suse.com/security/cve/CVE-2021-0605

https://www.suse.com/security/cve/CVE-2021-22555

https://www.suse.com/security/cve/CVE-2021-33200

https://www.suse.com/security/cve/CVE-2021-33624

https://www.suse.com/security/cve/CVE-2021-33909

https://www.suse.com/security/cve/CVE-2021-34693

https://www.suse.com/security/cve/CVE-2021-3609

Plugin Details

Severity: High

ID: 151935

File Name: openSUSE-2021-2427.nasl

Version: 1.3

Type: local

Agent: unix

Published: 7/22/2021

Updated: 7/23/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-33200

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

Temporal Vector: E:U/RL:OF/RC:C

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: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:kernel-debug-base, p-cpe:/a:novell:opensuse:kernel-default-man, p-cpe:/a:novell:opensuse:kernel-kvmsmall-base, p-cpe:/a:novell:opensuse:kernel-vanilla, p-cpe:/a:novell:opensuse:kernel-vanilla-base, p-cpe:/a:novell:opensuse:kernel-vanilla-devel, p-cpe:/a:novell:opensuse:kernel-vanilla-livepatch-devel, p-cpe:/a:novell:opensuse:kernel-zfcpdump-man, cpe:/o:novell:opensuse:15.3

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: 7/21/2021

Vulnerability Publication Date: 4/20/2021

Reference Information

CVE: CVE-2020-24588, CVE-2020-26558, CVE-2020-36385, CVE-2020-36386, CVE-2021-0129, CVE-2021-0512, CVE-2021-0605, CVE-2021-3609, CVE-2021-22555, CVE-2021-33200, CVE-2021-33624, CVE-2021-33909, CVE-2021-34693

IAVA: 2021-A-0350