Bug 1591163 (CVE-2018-0495)
| Summary: | CVE-2018-0495 ROHNP: Key Extraction Side Channel in Multiple Crypto Libraries | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Andrej Nemec <anemec> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | bbuckingham, bcourt, bkearney, bmaxwell, bmcclain, cbillett, cdewolf, chazlett, cpelland, csutherl, dajohnso, darran.lofthouse, dblechte, dfediuck, dimitris, dosoudil, dueno, eedri, elio.maldonado.batiz, erik-fedora, fedora, fgavrilo, gblomqui, gmccullo, gtanzill, gzaronik, hhudgeon, jawilson, jclere, jeremy, jfrey, jhardy, jmatthew, jondruse, jorton, jprause, jreznik, jshepherd, kdudka, ktietz, lersek, lgao, lpardo, marcandre.lureau, mbabacek, mgoldboi, michal.skrivanek, mmccune, mrike, mturk, myarboro, negativo17, nss-nspr-maint, obarenbo, ohadlevy, pgier, pjurak, ppalaga, psakar, pslavice, psotirop, rchan, rjerrido, rjones, rnetuka, roliveri, rstancel, rsvoboda, sbonazzo, sherold, simaishi, slawomir, sstavrev, szidek, thomas.moschny, tmraz, tomckay, tsanders, twalsh, vtunka, weli, ykaul |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2019-06-10 10:29:07 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1591906, 1591164, 1591165, 1591166, 1591167, 1591168, 1591169, 1591170, 1591171, 1591172, 1591173, 1591174, 1591175, 1591176, 1591177, 1591178, 1591179, 1591367, 1591368, 1591392, 1591393, 1591803, 1591905, 1624230, 1624231, 1804406, 1804407, 1804410 | ||
| Bug Blocks: | 1591154 | ||
|
Description
Andrej Nemec
2018-06-14 08:05:05 UTC
Created botan tracking bugs for this issue: Affects: epel-all [bug 1591169] Affects: fedora-all [bug 1591172] Created cryptlib tracking bugs for this issue: Affects: epel-7 [bug 1591166] Affects: fedora-all [bug 1591165] Created libgcrypt tracking bugs for this issue: Affects: fedora-all [bug 1591174] Created libtomcrypt tracking bugs for this issue: Affects: epel-all [bug 1591179] Affects: fedora-all [bug 1591178] Created mingw-libgcrypt tracking bugs for this issue: Affects: epel-7 [bug 1591176] Affects: fedora-all [bug 1591175] Created mingw-openssl tracking bugs for this issue: Affects: epel-7 [bug 1591167] Affects: fedora-all [bug 1591168] Created nss tracking bugs for this issue: Affects: fedora-all [bug 1591164] Created openssl tracking bugs for this issue: Affects: fedora-all [bug 1591170] *** Bug 1591904 has been marked as a duplicate of this bug. *** Bouncycastle was mentioned in this report as having "non-constant math, but different code pattern" which might point to a theoretical weakness in Bouncycastle's implementation of Elliptic Curve cryptography. However the CVE-2018-0495 issue does not apply to Bouncycastle, thus it is considered "not affected" by this flaw. Bouncycastle inherently relies upon Java BigInteger arithmetic, which is not constant-time by design, so other countermeasures are needed to mitigate timing/side channel attacks. In RSA operations, Bouncycastle uses blinding (ref CVE-2016-1000341). Since 1.59, EC operations use a table lookup to prevent information leaks through similar channels. Libgcrypt upstream commit: https://github.com/gpg/libgcrypt/commit/9010d1576e278a4274ad3f4aa15776c28f6ba965 libgcrypt in Red Hat Enterprise Linux, does not enable ECC code. Since only ECDSA in libgcrypt is vulnerable, it seems RHEL versions of libgcrypt may not be vulnerable to this flaw. This issue was addressed by Mozilla nss in version nss-3.38 https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.38_release_notes OpenSSL upstream patches: https://git.openssl.org/?p=openssl.git;a=commit;h=949ff36623eafc3523a9f91784992965018ffb05 (1.0.2) https://git.openssl.org/?p=openssl.git;a=commit;h=0c27d793745c7837b13646302b6890a556b7017a (1.1) This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2018:3221 https://access.redhat.com/errata/RHSA-2018:3221 This vulnerability is out of security support scope for the following product: * Red Hat Enterprise Application Platform 5 Please refer to https://access.redhat.com/support/policy/updates/jboss_notes for more details. This issue has been addressed in the following products: JBoss Core Services Apache HTTP Server 2.4.29 SP2 Via RHSA-2019:1296 https://access.redhat.com/errata/RHSA-2019:1296 This issue has been addressed in the following products: JBoss Core Services on RHEL 7 JBoss Core Services on RHEL 6 Via RHSA-2019:1297 https://access.redhat.com/errata/RHSA-2019:1297 This issue has been addressed in the following products: JBoss Core Services Apache HTTP Server 2.4.29 SP2 Via RHSA-2019:1543 https://access.redhat.com/errata/RHSA-2019:1543 (In reply to Andrej Nemec from comment #0) > https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/ This article does not explain its text what ROHNP abbreviation stands for. However, the URL provides the explanation: Return Of the Hidden Number Problem. There are further details in this additional blog post from the NCC Group: https://www.nccgroup.trust/us/about-us/newsroom-and-events/blog/2018/june/its-back...understanding-the-return-of-the-hidden-number-problem/ This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2019:2237 https://access.redhat.com/errata/RHSA-2019:2237 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.5 Extended Update Support Via RHSA-2020:1267 https://access.redhat.com/errata/RHSA-2020:1267 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.4 Advanced Update Support Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions Red Hat Enterprise Linux 7.4 Telco Extended Update Support Via RHSA-2020:1345 https://access.redhat.com/errata/RHSA-2020:1345 This issue has been addressed in the following products: Red Hat Enterprise Linux 7.6 Extended Update Support Via RHSA-2020:1461 https://access.redhat.com/errata/RHSA-2020:1461 Statement: Since the 5.8.3 release, Red Hat CloudForms no longer uses libtomcrypt. |