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CVE-2016-2109

Published: 25 April 2016

The asn1_d2i_read_bio function in crypto/asn1/a_d2i_fp.c in the ASN.1 BIO implementation in OpenSSL before 1.0.1t and 1.0.2 before 1.0.2h allows remote attackers to cause a denial of service (memory consumption) via a short invalid encoding.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
openssl098
Launchpad, Ubuntu, Debian
bionic Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist
(trusty was needed)
upstream Needs triage

wily Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

artful Does not exist

precise Ignored
(end of life)
openssl
Launchpad, Ubuntu, Debian
artful
Released (1.0.2g-1ubuntu5)
bionic
Released (1.0.2g-1ubuntu5)
cosmic
Released (1.0.2g-1ubuntu5)
disco
Released (1.0.2g-1ubuntu5)
precise
Released (1.0.1-4ubuntu5.36)
trusty
Released (1.0.1f-1ubuntu2.19)
upstream
Released (1.0.1t, 1.0.2h)
wily
Released (1.0.2d-0ubuntu1.5)
xenial
Released (1.0.2g-1ubuntu4.1)
yakkety
Released (1.0.2g-1ubuntu5)
zesty
Released (1.0.2g-1ubuntu5)
Patches:
upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=c62981390d6cf9e3d612c489b8b77c2913b25807
upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=9f13d4dd5ec420fb2fa0a7b94a6d66bb2700a492 (test)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H