Information Exposure Affecting openssl1.0 package, versions <1.0.2n-1ubuntu5.4
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Test your applications- Snyk ID SNYK-UBUNTU1804-OPENSSL10-536862
- published 6 Dec 2019
- disclosed 6 Dec 2019
Introduced: 6 Dec 2019
CVE-2019-1551 Open this link in a new tabHow to fix?
Upgrade Ubuntu:18.04 openssl1.0 to version 1.0.2n-1ubuntu5.4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openssl1.0 package and not the openssl1.0 package as distributed by Ubuntu.
See How to fix? for Ubuntu:18.04 relevant fixed versions and status.
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. Fixed in OpenSSL 1.1.1e (Affected 1.1.1-1.1.1d). Fixed in OpenSSL 1.0.2u (Affected 1.0.2-1.0.2t).
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2019-1551
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1551
- https://seclists.org/bugtraq/2019/Dec/39
- 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://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
- https://www.debian.org/security/2021/dsa-4855
- https://www.debian.org/security/2019/dsa-4594
- https://security-tracker.debian.org/tracker/CVE-2019-1551
- 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/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/
- 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
- https://security.netapp.com/advisory/ntap-20191210-0001/
- https://www.openssl.org/news/secadv/20191206.txt
- http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00030.html
- https://usn.ubuntu.com/4376-1/
- https://usn.ubuntu.com/4504-1/
- https://lists.debian.org/debian-lts-announce/2022/03/msg00023.html
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=419102400a2811582a7a3d4a4e317d72e5ce0a8f
- https://git.openssl.org/gitweb/?p=openssl.git%3Ba=commitdiff%3Bh=f1c5eea8a817075d31e43f5876993c6710238c98
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDHOAATPWJCXRNFMJ2SASDBBNU5RJONY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EXDDAOWSAIEFQNBHWYE6PPYFV4QXGMCD/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XVEP3LAK4JSPRXFO4QF4GG2IVXADV3SO/