Oracle Linux 8 : opensc (ELSA-2020-4483)

Medium Nessus Plugin ID 142797

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VPR Score: 5.9

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2020-4483 advisory.

- OpenSC before 0.20.0-rc1 has an out-of-bounds access of an ASN.1 Octet string in asn1_decode_entry in libopensc/asn1.c. (CVE-2019-15946)

- An issue was discovered in OpenSC through 0.19.0 and 0.20.x through 0.20.0-rc3. libopensc/card-cac1.c mishandles buffer limits for CAC certificates. (CVE-2019-19481)

- OpenSC before 0.20.0-rc1 has an out-of-bounds access of an ASN.1 Bitstring in decode_bit_string in libopensc/asn1.c. (CVE-2019-15945)

- An issue was discovered in OpenSC through 0.19.0 and 0.20.x through 0.20.0-rc3. libopensc/card-setcos.c has an incorrect read operation during parsing of a SETCOS file attribute. (CVE-2019-19479)

- 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. (CVE-2019-20792)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected opensc package.

See Also

https://linux.oracle.com/errata/ELSA-2020-4483.html

Plugin Details

Severity: Medium

ID: 142797

File Name: oraclelinux_ELSA-2020-4483.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2020/11/12

Updated: 2020/11/13

Dependencies: 12634

Risk Information

Risk Factor: Medium

VPR Score: 5.9

CVSS Score Source: CVE-2019-20792

CVSS v2.0

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 6.8

Temporal Score: 5.9

Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:oracle:linux:8, p-cpe:/a:oracle:linux:opensc

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Ease: No known exploits are available

Patch Publication Date: 2020/11/10

Vulnerability Publication Date: 2019/09/05

Reference Information

CVE: CVE-2019-15945, CVE-2019-15946, CVE-2019-19479, CVE-2019-19481, CVE-2019-20792