SUSE update for opensc

Published: 2022-03-30

Risk	Medium
Patch available	YES
Number of vulnerabilities	13
CVE-ID	CVE-2019-15945 CVE-2019-15946 CVE-2019-19479 CVE-2019-19481 CVE-2019-20792 CVE-2019-6502 CVE-2020-26570 CVE-2020-26571 CVE-2020-26572 CVE-2021-42779 CVE-2021-42780 CVE-2021-42781 CVE-2021-42782
CWE-ID	CWE-125 CWE-119 CWE-415 CWE-401 CWE-122 CWE-121 CWE-416 CWE-252
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #6 is available.
Vulnerable software Subscribe	SUSE Linux Enterprise Server for SAP Operating systems & Components / Operating system SUSE Linux Enterprise High Performance Computing Operating systems & Components / Operating system SUSE Linux Enterprise Server Operating systems & Components / Operating system opensc-debugsource Operating systems & Components / Operating system package or component opensc-debuginfo Operating systems & Components / Operating system package or component opensc Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 13 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU23845

Risk: Low

CVSSv3.1: 2.1 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-15945

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing ASN.1 Bitstring within the decode_bit_string() function in libopensc/asn1.c. A local user can pass specially crafted data to the application, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

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: #VU23844

Risk: Low

CVSSv3.1: 4.5 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-15946

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when processing ASN.1 Octet string within the asn1_decode_entry() function in libopensc/asn1.c. A local user can supply specially crafted data to the application, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Out-of-bounds read

EUVDB-ID: #VU23848

Risk: Low

CVSSv3.1: 2.1 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-19479

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition when parsing SETCOS file attribute in libopensc/card-setcos.c. A local user can pass specially crafted file to the application, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Buffer overflow

EUVDB-ID: #VU23847

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-19481

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing CAC certificates in libopensc/card-cac1.c. A local user can pass specially crafted certificate 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

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Double Free

EUVDB-ID: #VU34415

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-20792

CWE-ID: CWE-415 - Double Free

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to execute arbitrary code.

OpenSC before 0.20.0 has a double free in coolkey_free_private_data because coolkey_add_object in libopensc/card-coolkey.c lacks a uniqueness check.

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Memory leak

EUVDB-ID: #VU17200

Risk: Low

CVSSv3.1: 2.2 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-6502

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak in sc_context_create in ctx.c in libopensc. A local user can trigger memory leak and perform denial of service attack.

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

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.

7) Heap-based buffer overflow

EUVDB-ID: #VU48687

Risk: Medium

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-2020-26570

CWE-ID: CWE-122 - Heap-based Buffer Overflow

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 error within the sc_oberthur_read_file. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger heap-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

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.

8) Stack-based buffer overflow

EUVDB-ID: #VU48688

Risk: Medium

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-2020-26571

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

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 error in sc_pkcs15emu_gemsafeGPK_init. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

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.

9) Stack-based buffer overflow

EUVDB-ID: #VU48689

Risk: Medium

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-2020-26572

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

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 error in tcos_decipher. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

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

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

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.

10) Use-after-free

EUVDB-ID: #VU66142

Risk: Low

CVSSv3.1: 1.8 [CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-42779

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in Opensc in sc_file_valid. An attacker with physical access can trigger use-after-free to perform a denial of service attack.

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) Unchecked Return Value

EUVDB-ID: #VU66136

Risk: Low

CVSSv3.1: 2.1 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-42780

CWE-ID: CWE-252 - Unchecked Return Value

Exploit availability: No

Description

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.

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Heap-based buffer overflow

EUVDB-ID: #VU66141

Risk: Low

CVSSv3.1: 1.8 [CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-42781

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in Opensc before in pkcs15-oberthur.c. An attacker with physical access can pass specially crafted data to the application, trigger a heap-based buffer overflow and perform denial of service attack.

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Stack-based buffer overflow

EUVDB-ID: #VU66137

Risk: Low

CVSSv3.1: 2.1 [CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-42782

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

Exploit availability: No

Description

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.

Mitigation

Update the affected package opensc to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server for SAP: 15-SP3

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-LTSS

SUSE Linux Enterprise Server: 15-LTSS

opensc-debugsource: before 0.18.0-150000.3.23.1

opensc-debuginfo: before 0.18.0-150000.3.23.1

opensc: before 0.18.0-150000.3.23.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20221041-1/

Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.