CVE-2014-1569
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 3.18% probability · 87th percentile
- CISA KEV
- Not listed
- Affected
- mozilla/network security services
- Source
- security@mozilla.org
References
- 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.pdfExploit
- 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=1064670Exploit
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.17.3_release_notesVendor Advisory
- https://www.imperialviolet.org/2014/09/26/pkcs1.htmlExploit
- https://www.reddit.com/r/netsec/comments/2hd1m8/rsa_signature_forgery_in_nss/cksnr02Exploit
- 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.pdfExploit
- 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=1064670Exploit
- https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.17.3_release_notesVendor Advisory
- https://www.imperialviolet.org/2014/09/26/pkcs1.htmlExploit
- https://www.reddit.com/r/netsec/comments/2hd1m8/rsa_signature_forgery_in_nss/cksnr02Exploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.