Ubuntu update for liblouis



Published: 2023-04-06
Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-26767
CVE-2023-26768
CVE-2023-26769
CWE-ID CWE-119
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Ubuntu
Operating systems & Components / Operating system

liblouis9 (Ubuntu package)
Operating systems & Components / Operating system package or component

python-louis (Ubuntu package)
Operating systems & Components / Operating system package or component

liblouis-bin (Ubuntu package)
Operating systems & Components / Operating system package or component

liblouis20 (Ubuntu package)
Operating systems & Components / Operating system package or component

Vendor Canonical Ltd.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Buffer overflow

EUVDB-ID: #VU72859

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-26767

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within lou_setDataPath, lou_logFile and resolveSubtable. A local user can trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Update the affected package liblouis to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 22.10

liblouis9 (Ubuntu package): before Ubuntu Pro

python-louis (Ubuntu package): before 3.5.0-1ubuntu0.5

liblouis-bin (Ubuntu package): before Ubuntu Pro

liblouis20 (Ubuntu package): before 3.22.0-2ubuntu0.1

External links

http://ubuntu.com/security/notices/USN-5996-1


Q & 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) Buffer overflow

EUVDB-ID: #VU74500

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-26768

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the lou_setDataPath in compileTranslationTable.c. A local user can trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Update the affected package liblouis to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 22.10

liblouis9 (Ubuntu package): before Ubuntu Pro

python-louis (Ubuntu package): before 3.5.0-1ubuntu0.5

liblouis-bin (Ubuntu package): before Ubuntu Pro

liblouis20 (Ubuntu package): before 3.22.0-2ubuntu0.1

External links

http://ubuntu.com/security/notices/USN-5996-1


Q & 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.

3) Buffer overflow

EUVDB-ID: #VU74497

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-26769

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within l Lou_Trace. A local user can trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Update the affected package liblouis to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 22.10

liblouis9 (Ubuntu package): before Ubuntu Pro

python-louis (Ubuntu package): before 3.5.0-1ubuntu0.5

liblouis-bin (Ubuntu package): before Ubuntu Pro

liblouis20 (Ubuntu package): before 3.22.0-2ubuntu0.1

External links

http://ubuntu.com/security/notices/USN-5996-1


Q & 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.



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