openEuler 20.03 LTS SP3 update for bind

Published: 2022-10-14

Risk	Medium
Patch available	YES
Number of vulnerabilities	5
CVE-ID	CVE-2022-38177 CVE-2022-38178 CVE-2022-2795 CVE-2022-2881 CVE-2022-2906
CWE-ID	CWE-401 CWE-399 CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	openEuler Operating systems & Components / Operating system python3-bind Operating systems & Components / Operating system package or component bind-debugsource Operating systems & Components / Operating system package or component bind-export-devel Operating systems & Components / Operating system package or component bind-libs-lite Operating systems & Components / Operating system package or component bind-chroot Operating systems & Components / Operating system package or component bind-devel Operating systems & Components / Operating system package or component bind-pkcs11-devel Operating systems & Components / Operating system package or component bind-export-libs Operating systems & Components / Operating system package or component bind-pkcs11 Operating systems & Components / Operating system package or component bind-debuginfo Operating systems & Components / Operating system package or component bind-libs Operating systems & Components / Operating system package or component bind-utils Operating systems & Components / Operating system package or component bind Operating systems & Components / Operating system package or component
Vendor	openEuler

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Memory leak

EUVDB-ID: #VU67549

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-38177

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in the DNSSEC verification code for the ECDSA algorithm. A remote attacker can spoof the target resolver with responses that have a malformed ECDSA signature and perform denial of service attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

python3-bind: before 9.11.21-14

bind-debugsource: before 9.11.21-14

bind-export-devel: before 9.11.21-14

bind-libs-lite: before 9.11.21-14

bind-chroot: before 9.11.21-14

bind-devel: before 9.11.21-14

bind-pkcs11-devel: before 9.11.21-14

bind-export-libs: before 9.11.21-14

bind-pkcs11: before 9.11.21-14

bind-debuginfo: before 9.11.21-14

bind-libs: before 9.11.21-14

bind-utils: before 9.11.21-14

bind: before 9.11.21-14

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1982

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Memory leak

EUVDB-ID: #VU67550

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-38178

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in the DNSSEC verification code for the EdDSA algorithm. A remote attacker can spoof the target resolver with responses that have a malformed EdDSA signature and perform denial of service attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

python3-bind: before 9.11.21-14

bind-debugsource: before 9.11.21-14

bind-export-devel: before 9.11.21-14

bind-libs-lite: before 9.11.21-14

bind-chroot: before 9.11.21-14

bind-devel: before 9.11.21-14

bind-pkcs11-devel: before 9.11.21-14

bind-export-libs: before 9.11.21-14

bind-pkcs11: before 9.11.21-14

bind-debuginfo: before 9.11.21-14

bind-libs: before 9.11.21-14

bind-utils: before 9.11.21-14

bind: before 9.11.21-14

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1982

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Resource management error

EUVDB-ID: #VU67545

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2795

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application when processing large delegations. A remote attacker can flood the target resolver with queries and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

python3-bind: before 9.11.21-14

bind-debugsource: before 9.11.21-14

bind-export-devel: before 9.11.21-14

bind-libs-lite: before 9.11.21-14

bind-chroot: before 9.11.21-14

bind-devel: before 9.11.21-14

bind-pkcs11-devel: before 9.11.21-14

bind-export-libs: before 9.11.21-14

bind-pkcs11: before 9.11.21-14

bind-debuginfo: before 9.11.21-14

bind-libs: before 9.11.21-14

bind-utils: before 9.11.21-14

bind: before 9.11.21-14

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1982

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Out-of-bounds read

EUVDB-ID: #VU67546

Risk: Medium

CVSSv3.1: 4.8 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2881

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information or perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition when reusing HTTP connection while requesting statistics from the stats channel. A remote DNS server under attacker's control trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

python3-bind: before 9.11.21-14

bind-debugsource: before 9.11.21-14

bind-export-devel: before 9.11.21-14

bind-libs-lite: before 9.11.21-14

bind-chroot: before 9.11.21-14

bind-devel: before 9.11.21-14

bind-pkcs11-devel: before 9.11.21-14

bind-export-libs: before 9.11.21-14

bind-pkcs11: before 9.11.21-14

bind-debuginfo: before 9.11.21-14

bind-libs: before 9.11.21-14

bind-utils: before 9.11.21-14

bind: before 9.11.21-14

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1982

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Memory leak

EUVDB-ID: #VU67547

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2906

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in key processing when using TKEY records in Diffie-Hellman mode with OpenSSL 3.0.0 and later versions. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

python3-bind: before 9.11.21-14

bind-debugsource: before 9.11.21-14

bind-export-devel: before 9.11.21-14

bind-libs-lite: before 9.11.21-14

bind-chroot: before 9.11.21-14

bind-devel: before 9.11.21-14

bind-pkcs11-devel: before 9.11.21-14

bind-export-libs: before 9.11.21-14

bind-pkcs11: before 9.11.21-14

bind-debuginfo: before 9.11.21-14

bind-libs: before 9.11.21-14

bind-utils: before 9.11.21-14

bind: before 9.11.21-14

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1982

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.