Detections
Analytics
Oracle Linux 9 : openssl (ELSA-2024-0310)
high Nessus Plugin ID 189378
Language:
Synopsis
The remote Oracle Linux host is missing a security update.Description
The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2024-0310 advisory.- Issue summary: A bug has been identified in the processing of key and initialisation vector (IV) lengths.
This can lead to potential truncation or overruns during the initialisation of some symmetric ciphers.
Impact summary: A truncation in the IV can result in non-uniqueness, which could result in loss of confidentiality for some cipher modes. When calling EVP_EncryptInit_ex2(), EVP_DecryptInit_ex2() or EVP_CipherInit_ex2() the provided OSSL_PARAM array is processed after the key and IV have been established. Any alterations to the key length, via the keylen parameter or the IV length, via the ivlen parameter, within the OSSL_PARAM array will not take effect as intended, potentially causing truncation or overreading of these values. The following ciphers and cipher modes are impacted: RC2, RC4, RC5, CCM, GCM and OCB. For the CCM, GCM and OCB cipher modes, truncation of the IV can result in loss of confidentiality. For example, when following NIST's SP 800-38D section 8.2.1 guidance for constructing a deterministic IV for AES in GCM mode, truncation of the counter portion could lead to IV reuse. Both truncations and overruns of the key and overruns of the IV will produce incorrect results and could, in some cases, trigger a memory exception. However, these issues are not currently assessed as security critical. Changing the key and/or IV lengths is not considered to be a common operation and the vulnerable API was recently introduced. Furthermore it is likely that application developers will have spotted this problem during testing since decryption would fail unless both peers in the communication were similarly vulnerable. For these reasons we expect the probability of an application being vulnerable to this to be quite low. However if an application is vulnerable then this issue is considered very serious. For these reasons we have assessed this issue as Moderate severity overall. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this because the issue lies outside of the FIPS provider boundary. OpenSSL 3.1 and 3.0 are vulnerable to this issue.
(CVE-2023-5363)
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 packages.See Also
Plugin Details
Severity: High
ID: 189378
File Name: oraclelinux_ELSA-2024-0310.nasl
Version: 1.1
Type: local
Agent: unix
Published: 1/23/2024
Updated: 3/8/2024
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: High
Base Score: 7.8
Temporal Score: 5.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N
CVSS Score Source: CVE-2023-5363
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:oracle:linux:9::appstream, cpe:/o:oracle:linux:9, cpe:/o:oracle:linux:9:3:baseos_patch, cpe:/o:oracle:linux:9::baseos_latest, p-cpe:/a:oracle:linux:openssl, p-cpe:/a:oracle:linux:openssl-devel, p-cpe:/a:oracle:linux:openssl-libs, p-cpe:/a:oracle:linux:openssl-perl
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: 1/22/2024
Vulnerability Publication Date: 10/24/2023
Reference Information
CVE: CVE-2023-5363
IAVA: 2023-A-0582-S