Anolis OS update for bind (Anolis OS 8.2)
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-25215 |
| CWE-ID | CWE-617 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Anolis OS Operating systems & Components / Operating system python3-bind Operating systems & Components / Operating system package or component bind-license Operating systems & Components / Operating system package or component 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-utils Operating systems & Components / Operating system package or component bind-pkcs11-libs 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-lite-devel 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-chroot Operating systems & Components / Operating system package or component bind Operating systems & Components / Operating system package or component |
| Vendor | OpenAnolis |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Reachable Assertion
EUVDB-ID: #VU52736
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2021-25215
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 DNAME records. A remote attacker can force named to add the same RRset to the ANSWER section more than once, trigger an assertion failure and crash the service. Both authoritative and recursive servers are affected by this issue during zone transfers.
Install updates from vendor's repository.
Vulnerable software versionsAnolis OS: 8
python3-bind: before 9.11.13-6
bind-license: before 9.11.13-6
bind-utils: before 9.11.13-6
bind-sdb-chroot: before 9.11.13-6
bind-sdb: before 9.11.13-6
bind-pkcs11-utils: before 9.11.13-6
bind-pkcs11-libs: before 9.11.13-6
bind-pkcs11-devel: before 9.11.13-6
bind-pkcs11: before 9.11.13-6
bind-lite-devel: before 9.11.13-6
bind-libs-lite: before 9.11.13-6
bind-libs: before 9.11.13-6
bind-export-libs: before 9.11.13-6
bind-export-devel: before 9.11.13-6
bind-devel: before 9.11.13-6
bind-chroot: before 9.11.13-6
bind: before 9.11.13-6
CPE2.3- cpe:2.3:o:openanolis:anolis_os:8:*:*:*:*:*:*:*
- cpe:2.3:a:openanolis:python3-bind:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-license:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-utils:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-sdb-chroot:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-sdb:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-pkcs11-utils:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-pkcs11-libs:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-pkcs11-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-pkcs11:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-lite-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-libs-lite:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-libs:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-export-libs:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-export-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-devel:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind-chroot:*:*:*:*:*:anolis_os:*:*
- cpe:2.3:a:openanolis:bind:*:*:*:*:*:anolis_os:*:*
https://anas.openanolis.cn/errata/detail/ANSA-2021:0116
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.
