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EulerOS Virtualization 2.5.3 : openssl (EulerOS-SA-2019-1258)
medium Nessus Plugin ID 123726
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Synopsis
The remote EulerOS Virtualization host is missing a security update.Description
According to the version of the openssl packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerability :- If an application encounters a fatal protocol error and then calls SSL_shutdown() twice (once to send a close_notify, and once to receive one) then OpenSSL can respond differently to the calling application if a 0 byte record is received with invalid padding compared to if a 0 byte record is received with an invalid MAC.
If the application then behaves differently based on that in a way that is detectable to the remote peer, then this amounts to a padding oracle that could be used to decrypt data. In order for this to be exploitable 'non-stitched' ciphersuites must be in use.
Stitched ciphersuites are optimised implementations of certain commonly used ciphersuites. Also the application must call SSL_shutdown() twice even if a protocol error has occurred (applications should not do this but some do anyway). Fixed in OpenSSL 1.0.2r (Affected 1.0.2-1.0.2q).i1/4^CVE-2019-1559i1/4%0
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected openssl package.See Also
Plugin Details
Severity: Medium
ID: 123726
File Name: EulerOS_SA-2019-1258.nasl
Version: 1.9
Type: local
Family: Huawei Local Security Checks
Published: 4/4/2019
Updated: 6/5/2024
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.2
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS Score Source: CVE-2019-1559
CVSS v3
Risk Factor: Medium
Base Score: 5.9
Temporal Score: 5.2
Vector: CVSS:3.0/AV:N/AC:H/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:/o:huawei:euleros:uvp:2.5.3, p-cpe:/a:huawei:euleros:openssl-devel, p-cpe:/a:huawei:euleros:openssl-libs, p-cpe:/a:huawei:euleros:openssl
Required KB Items: Host/local_checks_enabled, Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/uvp_version
Exploit Ease: No known exploits are available
Patch Publication Date: 4/2/2019
Reference Information
CVE: CVE-2019-1559