CVE-2016-2178

NameCVE-2016-2178
DescriptionThe dsa_sign_setup function in crypto/dsa/dsa_ossl.c in OpenSSL through 1.0.2h does not properly ensure the use of constant-time operations, which makes it easier for local users to discover a DSA private key via a timing side-channel attack.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-637-1, DSA-3673-1
NVD severitylow (attack range: local)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openssl (PTS)wheezy1.0.1e-2+deb7u20vulnerable
wheezy (security)1.0.1t-1+deb7u2fixed
jessie (security), jessie1.0.1t-1+deb8u6fixed
stretch1.1.0f-3fixed
buster, sid1.1.0f-5fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensslsource(unstable)1.0.2i-1low
opensslsourcejessie1.0.1t-1+deb8u4lowDSA-3673-1
opensslsourcewheezy1.0.1t-1+deb7u1lowDLA-637-1

Notes

Fixed in master branch in https://git.openssl.org/?p=openssl.git;a=commit;h=399944622df7bd81af62e67ea967c470534090e2
https://www.openssl.org/news/secadv/20160922.txt
Fixed in 1.0.2i, 1.0.1u

Search for package or bug name: Reporting problems