CVE-2018-10844

NameCVE-2018-10844
DescriptionIt was found that the GnuTLS implementation of HMAC-SHA-256 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plaintext-recovery attacks via statistical analysis of timing data using crafted packets.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-1560-1
NVD severitymedium (attack range: remote)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
gnutls28 (PTS)jessie3.3.8-6+deb8u7vulnerable
jessie (security)3.3.30-0+deb8u1fixed
stretch3.5.8-5+deb9u4fixed
stretch (security)3.5.8-5+deb9u1vulnerable
buster, sid3.5.19-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
gnutls26source(unstable)(unfixed)medium
gnutls28source(unstable)3.5.19-1medium
gnutls28sourcejessie3.3.30-0+deb8u1mediumDLA-1560-1
gnutls28sourcestretch3.5.8-5+deb9u4medium

Notes

https://gitlab.com/gnutls/gnutls/issues/456
https://gitlab.com/gnutls/gnutls/commit/29ffa2a1fa4cc396c5d1563a3e5cdca0174de28b (master)
https://gitlab.com/gnutls/gnutls/commit/c32a8690f9f9b05994078fe9d2e7a41b18da5b09 (master)
https://gitlab.com/gnutls/gnutls/commit/c433cdf92349afae66c703bdacedf987f423605e (gnutls_3_5_19)
https://gitlab.com/gnutls/gnutls/commit/c2e094acd68f7159025b2e2556d6fb4427b41dd7 (gnutls_3_5_19)
https://gitlab.com/gnutls/gnutls/merge_requests/657
https://eprint.iacr.org/2018/747

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