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CVE-2016-2181

Published: 16 September 2016

The 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.

Priority

Low

CVSS 3 base score: 7.5

Status

Package Release Status
openssl
Launchpad, Ubuntu, Debian
Upstream
Released (1.0.2i, 1.0.1u)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (1.0.2g-1ubuntu9)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (1.0.2g-1ubuntu4.4)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (1.0.1f-1ubuntu2.20)
Patches:
Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=fa75569758298e2930c78989b516cac937118acc (1.0.1)
Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=b77ab018b79a00f789b0fb85596b446b08be4c9d (1.0.1)
Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=5802758eb480c5f14a768f6a061df1dd20aec8c4 (1.0.1)
Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=20744f6b40b5ded059a848f66d6ba922f2a62eb3 (1.0.2)
Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=3884b47b7c255c2e94d9b387ee83c7e8bb981258 (1.0.2)
Upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=26aebca74e38ae09f673c2045cc8e2ef762d265a (1.0.2)
openssl098
Launchpad, Ubuntu, Debian
Upstream Needs triage

Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was needs-triage)