openEuler 20.03 LTS SP4 update for liblouis

1) Buffer overflow

EUVDB-ID: #VU64229

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-2022-26981

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary within the in compilePassOpcode() function in compileTranslationTable.c. A remote attacker can trick the victim to pass specially crafted data to the application, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP4

python2-louis: before 3.7.0-5

python3-louis: before 3.7.0-5

liblouis-help: before 3.7.0-5

liblouis-utils: before 3.7.0-5

liblouis-debugsource: before 3.7.0-5

liblouis-devel: before 3.7.0-5

liblouis-debuginfo: before 3.7.0-5

liblouis: before 3.7.0-5

CPE2.3

• cpe:2.3:o:openeuler:openeuler:20.03:LTS SP4:*:*:*:*:*:

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1949

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.