Security Bulletin
This security bulletin contains information about 10 vulnerabilities.
EUVDB-ID: #VU50395
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-2020-36228
CWE-ID:
CWE-191 - Integer underflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to integer underflow when processing the certificate list exact assertion. A remote attacker can send a specially crafted request to the slapd, trigger integer underflow and perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
openldap-help: before 2.4.50-3
openldap-devel: before 2.4.50-3
openldap-clients: before 2.4.50-3
openldap-debuginfo: before 2.4.50-3
openldap-debugsource: before 2.4.50-3
openldap-servers: before 2.4.50-3
openldap: before 2.4.50-3
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1062
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.
EUVDB-ID: #VU50394
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-2020-36227
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in slapd with the cancel_extop Cancel operation. A remote attacker can send a specially crafted request and perform a denial of service conditions.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
openldap-help: before 2.4.50-3
openldap-devel: before 2.4.50-3
openldap-clients: before 2.4.50-3
openldap-debuginfo: before 2.4.50-3
openldap-debugsource: before 2.4.50-3
openldap-servers: before 2.4.50-3
openldap: before 2.4.50-3
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1062
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.
EUVDB-ID: #VU50393
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-2020-36226
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe 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 leading to a memch->bv_len miscalculation during saslAuthzTo processing. A remote attacker can send specially crafted request to the slapd and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
openldap-help: before 2.4.50-3
openldap-devel: before 2.4.50-3
openldap-clients: before 2.4.50-3
openldap-debuginfo: before 2.4.50-3
openldap-debugsource: before 2.4.50-3
openldap-servers: before 2.4.50-3
openldap: before 2.4.50-3
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1062
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.
EUVDB-ID: #VU50397
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-2020-36230
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 parsing the X.509 DN within the ber_next_element() function in decode.c. A remote attacker can send a specially crafted request to slapd and perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
openldap-help: before 2.4.50-3
openldap-devel: before 2.4.50-3
openldap-clients: before 2.4.50-3
openldap-debuginfo: before 2.4.50-3
openldap-debugsource: before 2.4.50-3
openldap-servers: before 2.4.50-3
openldap: before 2.4.50-3
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1062
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.
EUVDB-ID: #VU50389
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-2020-36221
CWE-ID:
CWE-191 - Integer underflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to integer underflow within the serialNumberAndIssuerCheck() function in schema_init.c. A remote attacker can send a specially crafted request to the affected application, trigger an integer underflow and crash the slapd.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
openldap-help: before 2.4.50-3
openldap-devel: before 2.4.50-3
openldap-clients: before 2.4.50-3
openldap-debuginfo: before 2.4.50-3
openldap-debugsource: before 2.4.50-3
openldap-servers: before 2.4.50-3
openldap: before 2.4.50-3
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1062
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.
EUVDB-ID: #VU50390
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-2020-36222
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 in slapd in the saslAuthzTo validation. A remote attacker can send a specially crafted request and perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
openldap-help: before 2.4.50-3
openldap-devel: before 2.4.50-3
openldap-clients: before 2.4.50-3
openldap-debuginfo: before 2.4.50-3
openldap-debugsource: before 2.4.50-3
openldap-servers: before 2.4.50-3
openldap: before 2.4.50-3
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1062
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.
EUVDB-ID: #VU50398
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-2020-36224
CWE-ID:
CWE-763 - Release of invalid pointer or reference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to release of an invalid pointer when processing saslAuthzTo requests. A remote attacker can send a specially crafted request to slapd and perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
openldap-help: before 2.4.50-3
openldap-devel: before 2.4.50-3
openldap-clients: before 2.4.50-3
openldap-debuginfo: before 2.4.50-3
openldap-debugsource: before 2.4.50-3
openldap-servers: before 2.4.50-3
openldap: before 2.4.50-3
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1062
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.
EUVDB-ID: #VU50391
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-2020-36223
CWE-ID:
CWE-415 - Double Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error during the Values Return Filter control handling. A remote attacker can send a specially crafted request to the slapd, trigger a double free error and perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
openldap-help: before 2.4.50-3
openldap-devel: before 2.4.50-3
openldap-clients: before 2.4.50-3
openldap-debuginfo: before 2.4.50-3
openldap-debugsource: before 2.4.50-3
openldap-servers: before 2.4.50-3
openldap: before 2.4.50-3
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1062
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.
EUVDB-ID: #VU50392
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-2020-36225
CWE-ID:
CWE-415 - Double Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the saslAuthzTo processing. A remote attacker can send a specially crafted request to the slapd, trigger a double free error and perform a denial of service (DoS) attack
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
openldap-help: before 2.4.50-3
openldap-devel: before 2.4.50-3
openldap-clients: before 2.4.50-3
openldap-debuginfo: before 2.4.50-3
openldap-debugsource: before 2.4.50-3
openldap-servers: before 2.4.50-3
openldap: before 2.4.50-3
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1062
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.
EUVDB-ID: #VU50396
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-2020-36229
CWE-ID:
CWE-843 - Type confusion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a type confusion error in ldap_X509dn2bv when parsing X.509 DN in ad_keystring. A remote attacker can send a specially crafted request to slapd and crash it.
Install updates from vendor's repository.
Vulnerable software versionsopenEuler: 20.03 LTS - 20.03 LTS SP1
openldap-help: before 2.4.50-3
openldap-devel: before 2.4.50-3
openldap-clients: before 2.4.50-3
openldap-debuginfo: before 2.4.50-3
openldap-debugsource: before 2.4.50-3
openldap-servers: before 2.4.50-3
openldap: before 2.4.50-3
External linkshttp://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2021-1062
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.