SUSE update for ldb
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2020-27840 CVE-2021-20277 |
| CWE-ID | CWE-122 CWE-125 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
SUSE Linux Enterprise Module for Basesystem Operating systems & Components / Operating system libldb2-32bit-debuginfo Operating systems & Components / Operating system package or component libldb2-32bit Operating systems & Components / Operating system package or component python3-ldb-devel Operating systems & Components / Operating system package or component python3-ldb-debuginfo Operating systems & Components / Operating system package or component python3-ldb Operating systems & Components / Operating system package or component libldb2-debuginfo Operating systems & Components / Operating system package or component libldb2 Operating systems & Components / Operating system package or component libldb-devel Operating systems & Components / Operating system package or component ldb-tools-debuginfo Operating systems & Components / Operating system package or component ldb-tools Operating systems & Components / Operating system package or component ldb-debugsource Operating systems & Components / Operating system package or component |
| Vendor | SUSE |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Heap-based buffer overflow
EUVDB-ID: #VU51702
Risk: High
CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2020-27840
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing DNs inside bind requests. A remote attacker can send specially crafted LDAP request to Samba AD DC LDAP server, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationUpdate the affected package ldb to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Basesystem: 15-SP2
libldb2-32bit-debuginfo: before 2.0.12-3.6.1
libldb2-32bit: before 2.0.12-3.6.1
python3-ldb-devel: before 2.0.12-3.6.1
python3-ldb-debuginfo: before 2.0.12-3.6.1
python3-ldb: before 2.0.12-3.6.1
libldb2-debuginfo: before 2.0.12-3.6.1
libldb2: before 2.0.12-3.6.1
libldb-devel: before 2.0.12-3.6.1
ldb-tools-debuginfo: before 2.0.12-3.6.1
ldb-tools: before 2.0.12-3.6.1
ldb-debugsource: before 2.0.12-3.6.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libldb2-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libldb2-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:python3-ldb-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:python3-ldb-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:python3-ldb:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libldb2-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libldb2:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libldb-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:ldb-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:ldb-tools:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:ldb-debugsource:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20210945-1/
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) Out-of-bounds read
EUVDB-ID: #VU51701
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-2021-20277
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in ldb_handler_fold() function when processing multiple consecutive leading spaces within LDAP query. A remote user can send a specially crafted LDAP query, trigger out-of-bounds read error and crash the LDAP server.
Update the affected package ldb to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Basesystem: 15-SP2
libldb2-32bit-debuginfo: before 2.0.12-3.6.1
libldb2-32bit: before 2.0.12-3.6.1
python3-ldb-devel: before 2.0.12-3.6.1
python3-ldb-debuginfo: before 2.0.12-3.6.1
python3-ldb: before 2.0.12-3.6.1
libldb2-debuginfo: before 2.0.12-3.6.1
libldb2: before 2.0.12-3.6.1
libldb-devel: before 2.0.12-3.6.1
ldb-tools-debuginfo: before 2.0.12-3.6.1
ldb-tools: before 2.0.12-3.6.1
ldb-debugsource: before 2.0.12-3.6.1
CPE2.3- cpe:2.3:o:suse:suse_linux_enterprise_module_for_basesystem:15-SP2:*:*:*:*:*:*:*
- cpe:2.3:a:suse:libldb2-32bit-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libldb2-32bit:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:python3-ldb-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:python3-ldb-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:python3-ldb:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libldb2-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libldb2:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:libldb-devel:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:ldb-tools-debuginfo:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:ldb-tools:*:*:*:*:*:suse_linux:*:*
- cpe:2.3:a:suse:ldb-debugsource:*:*:*:*:*:suse_linux:*:*
https://www.suse.com/support/update/announcement/2021/suse-su-20210945-1/
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.
