SB2022052037 - openEuler update for opensc

Description

This security bulletin contains information about 3 vulnerabilities.

1) Double Free (CVE-ID: CVE-2021-42778)

CWE-ID: CWE-415 - Double Free

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows an attacker with physical access to perform a denial of service attack.

The vulnerability exists due to a boundary error. An attacker with physical access can pass specially crafted data to the application, trigger double free error, and perform a denial of service attack.

2) Unchecked Return Value (CVE-ID: CVE-2021-42780)

CWE-ID: CWE-252 - Unchecked Return Value

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows an attacker with physical access to perform denial of service attacks.

The vulnerability exists due to use after return issue in insert_pin() function in  Opensc. An attacker with physical access can trigger the vulnerability to perform denial of service attacks.

3) Stack-based buffer overflow (CVE-ID: CVE-2021-42782)

CWE-ID: CWE-121 - Stack-based buffer overflow

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows an attacker with physical access to perform a denial of service attack.

The vulnerability exists due to a boundary error in Opensc in various places. An attacker with physical access can trigger stack-based buffer overflow and perform a denial of service attack.

Remediation

Install update from vendor's website.

References

• https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1664