cnvd - cnvd-2018-06538

cnvd-2018-06538

Vulnerability from cnvd

Title: OpenSSL安全限制绕过漏洞（CNVD-2018-06538）

Description:

OpenSSL是一种开放源码的SSL实现，用来实现网络通信的高强度加密。

OpenSSL 1.1.0-1.1.0g版本PA-RISC CRYPTO_memcmp函数实现中存在安全漏洞，攻击者通过构造的消息利用此漏洞可绕过安全限制。

Severity: 中

Patch Name: OpenSSL安全限制绕过漏洞（CNVD-2018-06538）的补丁

Patch Description:

OpenSSL是一种开放源码的SSL实现，用来实现网络通信的高强度加密。

OpenSSL 1.1.0-1.1.0g版本PA-RISC CRYPTO_memcmp函数实现中存在安全漏洞，攻击者通过构造的消息利用此漏洞可绕过安全限制。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

OpenSSL Project已经为此发布了一个安全公告（20180327）以及相应补丁： https://www.openssl.org/news/secadv/20180327.txt

Reference: https://nvd.nist.gov/vuln/detail/CVE-2018-0733

Impacted products

Name
OpenSSL OpenSSL >=1.1.0，<=1.1.0g

Show details on source website

JSON

To clipboard

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CVE-2018-0733 (GCVE-0-2018-0733)

Vulnerability from cvelistv5

Published

2018-03-27 21:00

Modified

2024-09-16 20:46

Severity ?

CWE

Message forgery

Summary

Because of an implementation bug the PA-RISC CRYPTO_memcmp function is effectively reduced to only comparing the least significant bit of each byte. This allows an attacker to forge messages that would be considered as authenticated in an amount of tries lower than that guaranteed by the security claims of the scheme. The module can only be compiled by the HP-UX assembler, so that only HP-UX PA-RISC targets are affected. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g).

References

▼	URL	Tags
	https://www.tenable.com/security/tns-2018-07	x_refsource_CONFIRM
	https://www.tenable.com/security/tns-2018-04	x_refsource_CONFIRM
	http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html	x_refsource_CONFIRM
	https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html	x_refsource_CONFIRM
	https://security.gentoo.org/glsa/201811-21	vendor-advisory, x_refsource_GENTOO
	http://www.securityfocus.com/bid/103517	vdb-entry, x_refsource_BID
	https://www.tenable.com/security/tns-2018-06	x_refsource_CONFIRM
	http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html	x_refsource_CONFIRM
	https://security.netapp.com/advisory/ntap-20180330-0002/	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1040576	vdb-entry, x_refsource_SECTRACK
	https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=56d5a4bfcaf37fa420aef2bb881aa55e61cf5f2f	x_refsource_CONFIRM
	https://www.openssl.org/news/secadv/20180327.txt	x_refsource_CONFIRM
	https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html	x_refsource_MISC
	https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	OpenSSL	OpenSSL	Version: Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g)

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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