Juniper Junos OS and Junos OS Evolved update for SQLite
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 12 |
| CVE-ID | CVE-2021-36690 CVE-2020-11656 CVE-2021-20227 CVE-2020-15358 CVE-2020-13871 CVE-2020-13632 CVE-2020-13631 CVE-2020-13435 CVE-2020-13434 CVE-2020-11655 CVE-2020-9327 CVE-2020-13630 |
| CWE-ID | CWE-119 CWE-416 CWE-787 CWE-476 CWE-264 CWE-20 CWE-190 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #11 is available. |
| Vulnerable software Subscribe |
Junos OS Evolved Operating systems & Components / Operating system Juniper Junos OS Operating systems & Components / Operating system |
| Vendor | Juniper Networks, Inc. |
Security Bulletin
This security bulletin contains information about 12 vulnerabilities.
1) Buffer overflow
EUVDB-ID: #VU63627
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-36690
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service attack.
The vulnerability exists due to a segmentation fault in the sqlite3 command-line component when processing SQL queries in the idxGetTableInfo() function. A local user can pass a specially crafted SQL query and crash the application.
MitigationInstall update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Use-after-free
EUVDB-ID: #VU27024
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-11656
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in the ALTER TABLE implementation. A remote attacker can execute arbitrary code on the target system, as demonstrated by an ORDER BY clause that belongs to a compound SELECT statement.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationInstall update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & 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) Use-after-free
EUVDB-ID: #VU51834
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20227
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows an attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing SELECT queries in "src/select.c" if a subquery with both a correlated WHERE clause and a "HAVING 0" clause is used and the parent query is an aggregate. A remote attacker can execute a specially crafted query to trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationInstall update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & 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.
4) Out-of-bounds write
EUVDB-ID: #VU30165
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-15358
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a local authenticated user to perform a denial of service (DoS) attack.
In SQLite before 3.32.3, select.c mishandles query-flattener optimization, leading to a multiSelectOrderBy heap overflow because of misuse of transitive properties for constant propagation.
MitigationInstall update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) Use-after-free
EUVDB-ID: #VU28773
Risk: High
CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-13871
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in resetAccumulator() function in select.c. A remote attacker can pass specially crafted data to the application, trigger a use-after-free error and crash the service or execute arbitrary code on the target system
Install update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & 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.
6) NULL pointer dereference
EUVDB-ID: #VU34080
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-13632
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in ext/fts3/fts3_snippet.c in SQLite. A local user can trigger denial of service conditions via a crafted matchinfo() query.
MitigationInstall update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
7) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU34079
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-13631
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local user to bypass certain security restrictions.
The vulnerability exists due an error in alter.c and build.c files in SQLite that allows a local user to rename a virtual table into a shadow table. A local user with permissions to create virtual tables can renamed them and gain unauthorized access to the fronted application.
Install update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
8) Input validation error
EUVDB-ID: #VU28226
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-2020-13435
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in sqlite3ExprCodeTarget() function in expr.c. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & 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.
9) Integer overflow
EUVDB-ID: #VU28227
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-2020-13434
CWE-ID:
CWE-190 - Integer overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to integer overflow within the sqlite3_str_vappendf() function in printf.c. A remote attacker can pass specially crafted data to the application, trigger integer overflow and crash the application.
Install update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & 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.
10) Input validation error
EUVDB-ID: #VU27023
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-2020-11655
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input when the AggInfo object's initialization is mishandled. A remote attacker can pass specially crafted input via a malformed window-function query to the application and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & 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.
11) NULL pointer dereference
EUVDB-ID: #VU25861
Risk: Low
CVSSv3.1: 3.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C]
CVE-ID: CVE-2020-9327
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in SQLite 3.31.1, isAuxiliaryVtabOperator allows attackers to trigger a NULL pointer dereference and segmentation fault because of generated column optimizations. A remote attacker can perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & 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. However, proof of concept for this vulnerability is available.
12) Use-after-free
EUVDB-ID: #VU34077
Risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-13630
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the fts3EvalNextRow() function in ext/fts3/fts3.c. A remote attacker can pass specially crafted data to application, trigger a use-after-free error and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationInstall update from vendor's website.
Vulnerable software versionsJunos OS Evolved: 21.2-EVO - 22.1-EVO
Juniper Junos OS: 19.3 - 20.3R3-S2
External linksQ & 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.
