The definite_length_decoder function in lib/util/quickder.c in Mozilla Network Security Services (NSS) before 3.16.2.4 and 3.17.x before 3.17.3 does not ensure that the DER encoding of an ASN.1 length is properly formed, which allows remote attackers to conduct data-smuggling attacks by using a long byte sequence for an encoding, as demonstrated by the SEC_QuickDERDecodeItem function's improper handling of an arbitrary-length encoding of 0x00.
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00024.html
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00032.html
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00033.html
http://lists.opensuse.org/opensuse-security-announce/2015-01/msg00036.html
http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00000.html
http://www.debian.org/security/2015/dsa-3186
http://www.intelsecurity.com/resources/wp-berserk-analysis-part-1.pdf
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
http://www.securitytracker.com/id/1032909
https://bugzilla.mozilla.org/show_bug.cgi?id=1064670
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.17.3_release_notes
https://www.imperialviolet.org/2014/09/26/pkcs1.html
https://www.reddit.com/r/netsec/comments/2hd1m8/rsa_signature_forgery_in_nss/cksnr02
Source: MITRE
Published: 2014-12-15
Updated: 2017-09-22
Type: NVD-CWE-Other
Base Score: 7.5
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 10
Severity: HIGH