Ubuntu update for sqlite3
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2020-35525 CVE-2020-35527 CVE-2021-20223 |
| CWE-ID | CWE-476 CWE-125 CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Ubuntu Operating systems & Components / Operating system sqlite3 (Ubuntu package) Operating systems & Components / Operating system package or component |
| Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) NULL pointer dereference
EUVDB-ID: #VU67411
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-35525
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 the INTERSEC query processing. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
MitigationUpdate the affected package sqlite3 to the latest version.
Vulnerable software versionsUbuntu: 18.04 - 20.04
sqlite3 (Ubuntu package): before 3.31.1-4ubuntu0.4
External linkshttp://ubuntu.com/security/notices/USN-5615-1
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: #VU67412
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-35527
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when handling ALTER TABLE for views that have a nested FROM clause. A remote attacker can pass specially crafted input to the application, trigger an out-of-bounds read error and read contents of memory on the system.
MitigationUpdate the affected package sqlite3 to the latest version.
Vulnerable software versionsUbuntu: 18.04 - 20.04
sqlite3 (Ubuntu package): before 3.31.1-4ubuntu0.4
External linkshttp://ubuntu.com/security/notices/USN-5615-1
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.
3) Input validation error
EUVDB-ID: #VU67413
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20223
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input within the fts5UnicodeTokenize() function in ext/fts5/fts5_tokenize.c, which caused the unicode61 tokenizer configured to treat unicode "control-characters" (class Cc), was treating embedded nul characters as tokens. A remote attacker can pass specially crafted input to the application and bypass implemented security restrictions.
Update the affected package sqlite3 to the latest version.
Vulnerable software versionsUbuntu: 18.04 - 20.04
sqlite3 (Ubuntu package): before 3.31.1-4ubuntu0.4
External linkshttp://ubuntu.com/security/notices/USN-5615-1
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.
