openEuler update for samba
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-44142 |
| CWE-ID | CWE-787 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software |
openEuler Operating systems & Components / Operating system samba-vfs-glusterfs Operating systems & Components / Operating system package or component samba-pidl Operating systems & Components / Operating system package or component libsmbclient-devel Operating systems & Components / Operating system package or component samba-debugsource Operating systems & Components / Operating system package or component python3-samba-test Operating systems & Components / Operating system package or component samba-client Operating systems & Components / Operating system package or component samba-dc-provision Operating systems & Components / Operating system package or component libsmbclient Operating systems & Components / Operating system package or component samba-test Operating systems & Components / Operating system package or component samba-dc Operating systems & Components / Operating system package or component libwbclient-devel Operating systems & Components / Operating system package or component ctdb Operating systems & Components / Operating system package or component samba-debuginfo Operating systems & Components / Operating system package or component samba-dc-bind-dlz Operating systems & Components / Operating system package or component python3-samba-dc Operating systems & Components / Operating system package or component samba-help Operating systems & Components / Operating system package or component samba-winbind-clients Operating systems & Components / Operating system package or component samba-common-tools Operating systems & Components / Operating system package or component samba-devel Operating systems & Components / Operating system package or component ctdb-tests Operating systems & Components / Operating system package or component samba-winbind-krb5-locator Operating systems & Components / Operating system package or component samba-libs Operating systems & Components / Operating system package or component samba-winbind-modules Operating systems & Components / Operating system package or component samba-winbind Operating systems & Components / Operating system package or component libwbclient Operating systems & Components / Operating system package or component samba-common Operating systems & Components / Operating system package or component python3-samba Operating systems & Components / Operating system package or component samba-krb5-printing Operating systems & Components / Operating system package or component samba Operating systems & Components / Operating system package or component |
| Vendor | openEuler |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) Out-of-bounds write
EUVDB-ID: #VU60186
Risk: High
CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/U:Amber]
CVE-ID: CVE-2021-44142
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing EA metadata while opening files in smbd within the VFS Samba module (vfs_fruit). A remote attacker with ability to write to file's extended attributes can trigger an out-of-bounds write and execute arbitrary code with root privileges.
Note, the vulnerability in vfs_fruit exists in the default configuration of the fruit VFS module using fruit:metadata=netatalk or fruit:resource=file.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS SP1 - 20.03 LTS SP3
samba-vfs-glusterfs: before 4.11.12-10
samba-pidl: before 4.11.12-10
libsmbclient-devel: before 4.11.12-10
samba-debugsource: before 4.11.12-10
python3-samba-test: before 4.11.12-10
samba-client: before 4.11.12-10
samba-dc-provision: before 4.11.12-10
libsmbclient: before 4.11.12-10
samba-test: before 4.11.12-10
samba-dc: before 4.11.12-10
libwbclient-devel: before 4.11.12-10
ctdb: before 4.11.12-10
samba-debuginfo: before 4.11.12-10
samba-dc-bind-dlz: before 4.11.12-10
python3-samba-dc: before 4.11.12-10
samba-help: before 4.11.12-10
samba-winbind-clients: before 4.11.12-10
samba-common-tools: before 4.11.12-10
samba-devel: before 4.11.12-10
ctdb-tests: before 4.11.12-10
samba-winbind-krb5-locator: before 4.11.12-10
samba-libs: before 4.11.12-10
samba-winbind-modules: before 4.11.12-10
samba-winbind: before 4.11.12-10
libwbclient: before 4.11.12-10
samba-common: before 4.11.12-10
python3-samba: before 4.11.12-10
samba-krb5-printing: before 4.11.12-10
samba: before 4.11.12-10
CPE2.3- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP1:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP2:*:*:*:*:*:*
- cpe:2.3:o:openeuler:openeuler:20.03:LTS SP3:*:*:*:*:*:*
- cpe:2.3:a:openeuler:samba-vfs-glusterfs:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-pidl:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:libsmbclient-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-debugsource:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python3-samba-test:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-client:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-dc-provision:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:libsmbclient:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-test:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-dc:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:libwbclient-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:ctdb:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-debuginfo:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-dc-bind-dlz:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python3-samba-dc:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-help:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-winbind-clients:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-common-tools:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-devel:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:ctdb-tests:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-winbind-krb5-locator:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-libs:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-winbind-modules:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-winbind:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:libwbclient:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-common:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:python3-samba:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba-krb5-printing:*:*:*:*:*:openeuler:*:*
- cpe:2.3:a:openeuler:samba:*:*:*:*:*:openeuler:*:*
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1524
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. However, proof of concept for this vulnerability is available.
