SUSE update for opensc

1) Out-of-bounds read

EUVDB-ID: #VU77320

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-2977

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 within the cardos_have_verifyrc_package() function in pkcs15 cardos_have_verifyrc_package. A local user can pass a smart card package with malformed ASN1 context to the application, trigger an 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 Micro for Rancher: 5.2

SUSE Linux Enterprise Real Time 15: SP3

SUSE Linux Enterprise Micro: 5.1 - 5.2

opensc-debugsource: before 0.19.0-150100.3.22.1

opensc: before 0.19.0-150100.3.22.1

opensc-debuginfo: before 0.19.0-150100.3.22.1

External links

http://www.suse.com/support/update/announcement/2023/suse-su-20232508-1/

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.