openEuler 20.03 LTS update for bind
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2020-8622 CVE-2020-8623 CVE-2020-8624 |
| CWE-ID | CWE-617 CWE-264 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
openEuler Operating systems & Components / Operating system bind-utils Operating systems & Components / Operating system package or component bind-sdb-chroot Operating systems & Components / Operating system package or component bind-sdb Operating systems & Components / Operating system package or component bind-pkcs11-devel Operating systems & Components / Operating system package or component bind-pkcs11 Operating systems & Components / Operating system package or component bind-libs-lite Operating systems & Components / Operating system package or component bind-libs Operating systems & Components / Operating system package or component bind-export-libs Operating systems & Components / Operating system package or component bind-export-devel Operating systems & Components / Operating system package or component bind-devel Operating systems & Components / Operating system package or component bind-debugsource Operating systems & Components / Operating system package or component bind-debuginfo Operating systems & Components / Operating system package or component bind-chroot Operating systems & Components / Operating system package or component python3-bind 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 3 vulnerabilities.
1) Reachable Assertion
EUVDB-ID: #VU45819
Risk: Medium
CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-8622
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion when handling TSIG-signed request. An attacker on the network path for a TSIG-signed request, or operating the server receiving the TSIG-signed request, could send a truncated response to that request, triggering an assertion failure, causing the server to exit.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS
bind-utils: before 9.11.21-3
bind-sdb-chroot: before 9.11.21-3
bind-sdb: before 9.11.21-3
bind-pkcs11-devel: before 9.11.21-3
bind-pkcs11: before 9.11.21-3
bind-libs-lite: before 9.11.21-3
bind-libs: before 9.11.21-3
bind-export-libs: before 9.11.21-3
bind-export-devel: before 9.11.21-3
bind-devel: before 9.11.21-3
bind-debugsource: before 9.11.21-3
bind-debuginfo: before 9.11.21-3
bind-chroot: before 9.11.21-3
python3-bind: before 9.11.21-3
bind: before 9.11.21-3
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS:*:*:*:*:*:*
- cpe:2.3:a:openeuler:bind-utils:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-sdb-chroot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-sdb:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-pkcs11-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-pkcs11:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-libs-lite:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-libs:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-export-libs:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-export-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-chroot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python3-bind:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2020-1081
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Reachable Assertion
EUVDB-ID: #VU45818
Risk: Medium
CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2020-8623
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion when processing DNS query for a zone signed with RSA. A remote attacker can send a specially crafted query and crash the DNS server.
Successful exploitation of the vulnerability requires that BIND is built with "--enable-native-pkcs11".
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS
bind-utils: before 9.11.21-3
bind-sdb-chroot: before 9.11.21-3
bind-sdb: before 9.11.21-3
bind-pkcs11-devel: before 9.11.21-3
bind-pkcs11: before 9.11.21-3
bind-libs-lite: before 9.11.21-3
bind-libs: before 9.11.21-3
bind-export-libs: before 9.11.21-3
bind-export-devel: before 9.11.21-3
bind-devel: before 9.11.21-3
bind-debugsource: before 9.11.21-3
bind-debuginfo: before 9.11.21-3
bind-chroot: before 9.11.21-3
python3-bind: before 9.11.21-3
bind: before 9.11.21-3
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS:*:*:*:*:*:*
- cpe:2.3:a:openeuler:bind-utils:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-sdb-chroot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-sdb:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-pkcs11-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-pkcs11:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-libs-lite:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-libs:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-export-libs:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-export-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-chroot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python3-bind:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2020-1081
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) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU45817
Risk: Low
CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2020-8624
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform unauthorized actions.
The vulnerability exists due to change 4885 in BIND inadvertently caused "update-policy" rules of type "subdomain" to be treated as if they were of type "zonesub", allowing updates to all parts of the zone along with the intended subdomain. A remote user with privileges to change a specific subset of the zone's content could abuse these unintended additional privileges to update other contents of the zone.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS
bind-utils: before 9.11.21-3
bind-sdb-chroot: before 9.11.21-3
bind-sdb: before 9.11.21-3
bind-pkcs11-devel: before 9.11.21-3
bind-pkcs11: before 9.11.21-3
bind-libs-lite: before 9.11.21-3
bind-libs: before 9.11.21-3
bind-export-libs: before 9.11.21-3
bind-export-devel: before 9.11.21-3
bind-devel: before 9.11.21-3
bind-debugsource: before 9.11.21-3
bind-debuginfo: before 9.11.21-3
bind-chroot: before 9.11.21-3
python3-bind: before 9.11.21-3
bind: before 9.11.21-3
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS:*:*:*:*:*:*
- cpe:2.3:a:openeuler:bind-utils:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-sdb-chroot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-sdb:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-pkcs11-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-pkcs11:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-libs-lite:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-libs:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-export-libs:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-export-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind-chroot:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python3-bind:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:bind:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2020-1081
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
