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EulerOS Virtualization for ARM 64 3.0.2.0 : unbound (EulerOS-SA-2021-2124)

critical Nessus Plugin ID 151309

Synopsis

The remote EulerOS Virtualization for ARM 64 host is missing multiple security updates.

Description

According to the versions of the unbound package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities :

 - A flaw was found in unbound. An out-of-bounds write in the rdata_copy function may be abused by a remote attacker. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.(CVE-2019-25042)

 - A flaw was found in unbound. A reachable assertion in the dname_pkt_copy function can be triggered through compressed names. The highest threat from this vulnerability is to service availability.(CVE-2019-25041)

 - A flaw was found in unbound. An infinite loop in dname_pkt_copy function could be triggered by a remote attacker. The highest threat from this vulnerability is to service availability.(CVE-2019-25040)

 - A flaw was found in unbound. An integer overflow in ub_packed_rrset_key function may lead to a buffer overflow of the allocated buffer if the size can be controlled by an attacker. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.(CVE-2019-25039)

 - A flaw was found in unbound. An integer overflow in dnsc_load_local_data function may lead to a buffer overflow of the allocated buffer if the size can be controlled by an attacker. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.(CVE-2019-25038)

 - A flaw was found in unbound. A reachable assertion in the dname_pkt_copy function can be triggered by sending invalid packets to the server. The highest threat from this vulnerability is to service availability.(CVE-2019-25037)

 - A flaw was found in unbound. A reachable assertion in the synth_cname function can be triggered by sending invalid packets to the server. If asserts are disabled during compilation, this issue might lead to an out-of-bounds write in dname_pkt_copy function. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.(CVE-2019-25036)

 - A flaw was found in unbound. An out-of-bounds write in the sldns_bget_token_par function may be abused by a remote attacker. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.(CVE-2019-25035)

 - A flaw was found in unbound. An integer overflow in the sldns_str2wire_dname_buf_origin function may lead to a buffer overflow. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.(CVE-2019-25034)

 - A flaw was found in unbound. An integer overflow in the regional allocator via the ALIGN_UP macro may lead to a buffer overflow if the size can be controlled by an attacker. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.(CVE-2019-25033)

 - A flaw was found in unbound. An integer overflow in regional_alloc function may lead to a buffer overflow of the allocated buffer if the size can be controlled by an attacker and can be big enough. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.(CVE-2019-25032)

 - A flaw was found in unbound. The create_unbound_ad_servers.sh bash script does not properly sanitize input data, which is retrieved using an unencrypted, unauthenticated HTTP request, before writing the configuration file allowing a man-in-the-middle attack. The highest threat from this vulnerability is to data integrity and system availability.(CVE-2019-25031)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected unbound packages.

See Also

http://www.nessus.org/u?c85bf820

Plugin Details

Severity: Critical

ID: 151309

File Name: EulerOS_SA-2021-2124.nasl

Version: 1.3

Type: local

Published: 7/2/2021

Updated: 12/11/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2019-25042

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:huawei:euleros:unbound-libs, cpe:/o:huawei:euleros:uvp:3.0.2.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/2/2021

Reference Information

CVE: CVE-2019-25031, CVE-2019-25032, CVE-2019-25033, CVE-2019-25034, CVE-2019-25035, CVE-2019-25036, CVE-2019-25037, CVE-2019-25038, CVE-2019-25039, CVE-2019-25040, CVE-2019-25041, CVE-2019-25042