Detections
Analytics
Oracle Linux 9 : opensc (ELSA-2023-6587)
high Nessus Plugin ID 185814
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Synopsis
The remote Oracle Linux host is missing a security update.Description
The remote Oracle Linux 9 host has a package installed that is affected by a vulnerability as referenced in the ELSA-2023-6587 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
Update the affected opensc package.See Also
Plugin Details
Severity: High
ID: 185814
File Name: oraclelinux_ELSA-2023-6587.nasl
Version: 1.0
Type: local
Agent: unix
Published: 11/16/2023
Updated: 11/16/2023
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, 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:oracle:linux:9, cpe:/o:oracle:linux:9:3:baseos_base, cpe:/o:oracle:linux:9::baseos_latest, p-cpe:/a:oracle:linux:opensc
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux
Exploit Ease: No known exploits are available
Patch Publication Date: 11/11/2023
Vulnerability Publication Date: 6/1/2023
Reference Information
CVE: CVE-2023-2977