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CVE-2018-0739

Published: 27 March 2018

Constructed ASN.1 types with a recursive definition (such as can be found in PKCS7) could eventually exceed the stack given malicious input with excessive recursion. This could result in a Denial Of Service attack. There are no such structures used within SSL/TLS that come from untrusted sources so this is considered safe. Fixed in OpenSSL 1.1.0h (Affected 1.1.0-1.1.0g). Fixed in OpenSSL 1.0.2o (Affected 1.0.2b-1.0.2n).

Priority

Medium

CVSS 3 base score: 6.5

Status

Package Release Status
openssl
Launchpad, Ubuntu, Debian
artful
Released (1.0.2g-1ubuntu13.4)
bionic
Released (1.1.0g-2ubuntu3)
cosmic
Released (1.1.0g-2ubuntu3)
disco
Released (1.1.0g-2ubuntu3)
precise
Released (1.0.1-4ubuntu5.40)
trusty
Released (1.0.1f-1ubuntu2.24)
upstream
Released (1.0.2o,1.1.0h)
xenial
Released (1.0.2g-1ubuntu4.11)
Patches:
upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=9310d45087ae546e27e61ddf8f6367f29848220d (1.0.2)
upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=2ac4c6f7b2b2af20c0e2b0ba05367e454cd11b33 (1.1.0)
openssl098
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

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

xenial Does not exist

openssl1.0
Launchpad, Ubuntu, Debian
artful Does not exist

bionic
Released (1.0.2n-1ubuntu5)
cosmic
Released (1.0.2n-1ubuntu5)
disco Does not exist

precise Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist