Integer Overflow or Wraparound Affecting openssl package, versions <1:1.0.2k-12.el7
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Test your applications- Snyk ID SNYK-RHEL7-OPENSSL-4782669
- published 26 Jul 2021
- disclosed 7 Dec 2017
Introduced: 7 Dec 2017
CVE-2017-3738 Open this link in a new tabHow to fix?
Upgrade RHEL:7 openssl to version 1:1.0.2k-12.el7 or higher.
This issue was patched in RHSA-2018:0998.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openssl package and not the openssl package as distributed by RHEL.
See How to fix? for RHEL:7 relevant fixed versions and status.
There is an overflow bug in the AVX2 Montgomery multiplication procedure used in exponentiation with 1024-bit moduli. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH1024 are considered just feasible, because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be significant. However, for an attack on TLS to be meaningful, the server would have to share the DH1024 private key among multiple clients, which is no longer an option since CVE-2016-0701. This only affects processors that support the AVX2 but not ADX extensions like Intel Haswell (4th generation). Note: The impact from this issue is similar to CVE-2017-3736, CVE-2017-3732 and CVE-2015-3193. OpenSSL version 1.0.2-1.0.2m and 1.1.0-1.1.0g are affected. Fixed in OpenSSL 1.0.2n. Due to the low severity of this issue we are not issuing a new release of OpenSSL 1.1.0 at this time. The fix will be included in OpenSSL 1.1.0h when it becomes available. The fix is also available in commit e502cc86d in the OpenSSL git repository.
References
- http://www.securityfocus.com/bid/102118
- https://nodejs.org/en/blog/vulnerability/december-2017-security-releases/
- https://security.netapp.com/advisory/ntap-20171208-0001/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03881en_us
- https://www.openssl.org/news/secadv/20171207.txt
- https://www.openssl.org/news/secadv/20180327.txt
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- https://www.tenable.com/security/tns-2017-16
- https://www.tenable.com/security/tns-2018-04
- https://www.tenable.com/security/tns-2018-06
- https://www.tenable.com/security/tns-2018-07
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- https://access.redhat.com/security/cve/CVE-2017-3738
- https://www.debian.org/security/2017/dsa-4065
- https://www.debian.org/security/2018/dsa-4157
- https://security.FreeBSD.org/advisories/FreeBSD-SA-17:12.openssl.asc
- https://security.gentoo.org/glsa/201712-03
- https://github.com/openssl/openssl/commit/e502cc86df9dafded1694fceb3228ee34d11c11a
- https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
- https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
- https://access.redhat.com/errata/RHSA-2018:0998
- http://www.securitytracker.com/id/1039978