CVE-2014-1569

Sažetak

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.

Reference

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

CVSS

Base:	7.5
Impact:	6.4
Exploitability:	10.0

Pristup

Vektor	Složenost	Autentikacija
NETWORK	LOW	NONE

Impact

Povjerljivost	Cjelovitost	Dostupnost
PARTIAL	PARTIAL	PARTIAL

CVSS vektor

AV:N/AC:L/Au:N/C:P/I:P/A:P

Zadnje važnije ažuriranje

22-09-2017 - 01:29

Objavljeno

15-12-2014 - 18:59