Bug 1202366 (CVE-2015-0286)
| Summary: | CVE-2015-0286 openssl: invalid pointer use in ASN1_TYPE_cmp() | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Martin Prpič <mprpic> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | aavati, acathrow, alonbl, bazulay, bmcclain, bugzilla-redhat, cdewolf, cfergeau, dandread, darran.lofthouse, dblechte, dknox, ecohen, erik-fedora, fnasser, huwang, idith, iheim, jason.greene, jawilson, jboss-set, jclere, jdoyle, ktietz, lfarkas, lgao, lsurette, marcandre.lureau, michal.skrivanek, myarboro, nlevinki, pgier, pslavice, rbalakri, rfortier, rhs-bugs, rh-spice-bugs, rjones, rsvoboda, security-response-team, sgirijan, smohan, ssaha, steve.rigby, tmraz, twalsh, vbellur, vtunka, weli, yeylon, yozone |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | openssl 1.0.2a, openssl 1.0.1m, openssl 1.0.0r, openssl 0.9.8zf | Doc Type: | Bug Fix |
| Doc Text: |
An invalid pointer use flaw was found in OpenSSL's ASN1_TYPE_cmp() function. A remote attacker could crash a TLS/SSL client or server using OpenSSL via a specially crafted X.509 certificate when the attacker-supplied certificate was verified by the application.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-04-13 12:30:19 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: | 1196738, 1203070, 1203071, 1203082, 1203083, 1203855, 1203856, 1205026, 1205494, 1205495, 1207507, 1242354, 1242355, 1242909, 1242910 | ||
| Bug Blocks: | 1202442, 1205499, 1395463 | ||
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Description
Martin Prpič
2015-03-16 13:34:59 UTC
The affected ASN1_TYPE_cmp() function was introduced upstream in version 1.0.0 / 0.9.9 via the following commit: https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c7235be6 It was only backported to 0.9.8 branch upstream via the following commit: https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c22e2dd6 and first included in upstream version 0.9.8zd. Backport to 0.9.8 was done as a dependency of the CVE-2014-8275 (bug 1180187) fix. That issue was not fixed in Red Hat Enterprise Linux 5 or earlier, and hence the affected function does not exist in openssl packages in Red Hat Enterprise Linux 5 and earlier. It is possible that 1.0.0 and 1.0.1 versions prior to the CVE-2014-8275 fix were affected to a lesser extent, as that fix introduced call to the function in X509_verify(). The issue here is that ASN1_TYPE structure contains value that is union of various types. In case of BOOLEAN ASN1 type, value is integer (0 or 0xff). However, ASN1_TYPE_cmp() failed to handle this special case and used string comparison instead, which lead to value being interpreted as pointer, resulting in out of bounds read (often at NULL or near-NULL). External References: https://openssl.org/news/secadv_20150319.txt https://access.redhat.com/articles/1384453 Upstream commit: https://git.openssl.org/?p=openssl.git;a=commitdiff;h=c3c7fb07dc975dc3c9de0eddb7d8fd79fc9c67c1 Created openssl tracking bugs for this issue: Affects: fedora-all [bug 1196738] Created mingw-openssl tracking bugs for this issue: Affects: fedora-all [bug 1203855] Affects: epel-7 [bug 1203856] openssl-1.0.1k-6.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report. openssl-1.0.1k-6.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report. openssl-1.0.1e-42.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report. This issue has been addressed in the following products: Red Hat Enterprise Linux 6 Via RHSA-2015:0715 https://rhn.redhat.com/errata/RHSA-2015-0715.html This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2015:0716 https://rhn.redhat.com/errata/RHSA-2015-0716.html This issue has been addressed in the following products: Red Hat Storage 2.1 Via RHSA-2015:0752 https://rhn.redhat.com/errata/RHSA-2015-0752.html This issue has been addressed in the following products: Via RHSA-2016:2957 https://rhn.redhat.com/errata/RHSA-2016-2957.html |