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)

Tenable has extracted the preceding description block directly from the tested product security advisory.

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: 1.1

Type: local

Agent: unix

Published: 6/13/2023

Updated: 12/11/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

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