CVE-2016-2181

NameCVE-2016-2181
DescriptionThe Anti-Replay feature in the DTLS implementation in OpenSSL before 1.1.0 mishandles early use of a new epoch number in conjunction with a large sequence number, which allows remote attackers to cause a denial of service (false-positive packet drops) via spoofed DTLS records, related to rec_layer_d1.c and ssl3_record.c.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
ReferencesDLA-637-1, DSA-3673-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openssl (PTS)buster1.1.1n-0+deb10u3fixed
buster (security)1.1.1n-0+deb10u4fixed
bullseye1.1.1n-0+deb11u4fixed
bullseye (security)1.1.1n-0+deb11u5fixed
bookworm, sid3.0.9-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
opensslsourcewheezy1.0.1t-1+deb7u1DLA-637-1
opensslsourcejessie1.0.1t-1+deb8u4DSA-3673-1
opensslsource(unstable)1.0.2i-1

Notes

https://git.openssl.org/?p=openssl.git;a=commit;h=1fb9fdc3027b27d8eb6a1e6a846435b070980770
https://www.openssl.org/news/secadv/20160922.txt
Fixed in 1.0.2i, 1.0.1u
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