Detections
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Amazon Linux 2023 : opensc (ALAS2023-2023-207)

high Nessus Plugin ID 177195

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Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2023-207 advisory.

 - A vulnerbility was found in OpenSC. This security flaw cause a buffer overrun vulnerability in pkcs15 cardos_have_verifyrc_package. The attacker can supply a smart card package with malformed ASN1 context.
 The cardos_have_verifyrc_package function scans the ASN1 buffer for 2 tags, where remaining length is wrongly caculated due to moved starting pointer. This leads to possible heap-based buffer oob read. In cases where ASAN is enabled while compiling this causes a crash. Further info leak or more damage is possible. (CVE-2023-2977)

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

Solution

Run 'dnf update opensc --releasever 2023.0.20230614' to update your system.

See Also

https://alas.aws.amazon.com/AL2023/ALAS-2023-207.html

https://alas.aws.amazon.com/cve/html/CVE-2023-2977.html

https://alas.aws.amazon.com/faqs.html

Plugin Details

Severity: High

ID: 177195

File Name: al2023_ALAS2023-2023-207.nasl

Version: 1.0

Type: local

Agent: unix

Published: 6/13/2023

Updated: 6/13/2023

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.2

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2023-2977

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:opensc-debugsource, p-cpe:/a:amazon:linux:opensc, p-cpe:/a:amazon:linux:opensc-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/7/2023

Vulnerability Publication Date: 6/1/2023

Reference Information

CVE: CVE-2023-2977