Common Vulnerabilities and Exposures assigned an identifier CVE-2014-1569 to
the following vulnerability:
The definite_length_decoder function in lib/util/quickder.c in Mozilla
Network Security Services (NSS) before 126.96.36.199 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.
We believe the CVE-2014-1568 issue is required to trigger this bug, and that issue has already been resolved in Red Hat Enterprise Linux:
Created nss tracking bugs for this issue:
Affects: fedora-all [bug 1174493]
As RHEL seems to have rebased to nss 3.18.0, are they still vulnerable to this CVE? Given the text of the advisory from Mozilla, it appears as though it only affects 3.17.x before 3.17.3. Thanks in advance.
Changing needinfo from s-r-t@ to Huzaifa. He should be able to answer that.
I am also interested in the answer to David Sirrine's question. Has Huzaifa weighed in?
This issue was fixed in upstream nss-3.17.3 as described in the release notes at:
Consequently nss packages shipped with Red Hat Enterprise Linux 5, 6 and 7 were rebased to 3.18.0 via the following advisories.
Red Hat Enterprise Linux 5:
Red Hat Enterprise Linux 6:
Red Hat Enterprise Linux 7:
This particular rebase fixed this security flaw.