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Test ID:1.3.6.1.4.1.25623.1.1.2.2021.1825
Category:Huawei EulerOS Local Security Checks
Title:Huawei EulerOS: Security Advisory for openssl (EulerOS-SA-2021-1825)
Summary:The remote host is missing an update for the Huawei EulerOS 'openssl' package(s) announced via the EulerOS-SA-2021-1825 advisory.
Description:Summary:
The remote host is missing an update for the Huawei EulerOS 'openssl' package(s) announced via the EulerOS-SA-2021-1825 advisory.

Vulnerability Insight:
Calls to EVP_CipherUpdate, EVP_EncryptUpdate and EVP_DecryptUpdate may overflow the output length argument in some cases where the input length is close to the maximum permissible length for an integer on the platform. In such cases the return value from the function call will be 1 (indicating success), but the output length value will be negative. This could cause applications to behave incorrectly or crash.(CVE-2021-23840)

The OpenSSL public API function X509_issuer_and_serial_hash() attempts to create a unique hash value based on the issuer and serial number data contained within an X509 certificate. However it fails to correctly handle any errors that may occur while parsing the issuer field (which might occur if the issuer field is maliciously constructed). This may subsequently result in a NULL pointer deref and a crash leading to a potential denial of service attack. The function X509_issuer_and_serial_hash() is never directly called by OpenSSL itself so applications are only vulnerable if they use this function directly and they use it on certificates that may have been obtained from untrusted sources.(CVE-2021-23841)

There is an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against 2-prime RSA1024, 3-prime RSA1536, and DSA1024 as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH512 are considered just feasible. However, for an attack the target would have to re-use the DH512 private key, which is not recommended anyway. Also applications directly using the low level API BN_mod_exp may be affected if they use BN_FLG_CONSTTIME.(CVE-2019-1551)

Affected Software/OS:
'openssl' package(s) on Huawei EulerOS V2.0SP3.

Solution:
Please install the updated package(s).

CVSS Score:
5.0

CVSS Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:N

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2019-1551
Bugtraq: 20191225 [slackware-security] openssl (SSA:2019-354-01) (Google Search)
https://seclists.org/bugtraq/2019/Dec/39
Bugtraq: 20191229 [SECURITY] [DSA 4594-1] openssl1.0 security update (Google Search)
https://seclists.org/bugtraq/2019/Dec/46
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=419102400a2811582a7a3d4a4e317d72e5ce0a8f
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=f1c5eea8a817075d31e43f5876993c6710238c98
https://security.netapp.com/advisory/ntap-20191210-0001/
https://www.openssl.org/news/secadv/20191206.txt
https://www.tenable.com/security/tns-2019-09
https://www.tenable.com/security/tns-2020-03
https://www.tenable.com/security/tns-2020-11
https://www.tenable.com/security/tns-2021-10
Debian Security Information: DSA-4594 (Google Search)
https://www.debian.org/security/2019/dsa-4594
Debian Security Information: DSA-4855 (Google Search)
https://www.debian.org/security/2021/dsa-4855
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/
https://security.gentoo.org/glsa/202004-10
http://packetstormsecurity.com/files/155754/Slackware-Security-Advisory-openssl-Updates.html
https://www.oracle.com/security-alerts/cpuApr2021.html
https://www.oracle.com/security-alerts/cpujan2021.html
https://www.oracle.com/security-alerts/cpujul2020.html
SuSE Security Announcement: openSUSE-SU-2020:0062 (Google Search)
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00030.html
https://usn.ubuntu.com/4376-1/
https://usn.ubuntu.com/4504-1/
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