Bug 1184028 (CVE-2015-1182) - CVE-2015-1182 polarssl: remote attack using crafted certificates
Summary: CVE-2015-1182 polarssl: remote attack using crafted certificates
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-1182
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1184029 1184030
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-01-20 13:42 UTC by Martin Prpič
Modified: 2021-02-17 05:47 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2016-06-10 22:26:58 UTC

Attachments (Terms of Use)

Description Martin Prpič 2015-01-20 13:42:20 UTC 
The following flaw was found in PolarSSL:

During the parsing of a ASN.1 sequence, a pointer in the linked list of asn1_sequence is not initialized by asn1_get_sequence_of(). In case an error occurs during parsing of the list, a situation is created where the uninitialized pointer is passed to polarssl_free().

This sequence can be triggered when a PolarSSL entity is parsing a certificate. So practically this means clients when receiving a certificate from the server or servers in case they are actively asking for a client certificate.

Depending on the attackers knowledge of the system under attack, this results at the lowest into a Denial of Service, and at the most a possible Remote Code Execution.

The patch for this issue is provided in the PolarSSL Security Advisory 2014-04 referenced below.

External References:

https://polarssl.org/tech-updates/security-advisories/polarssl-security-advisory-2014-04
Comment 1 Martin Prpič 2015-01-20 13:43:31 UTC 
Created polarssl tracking bugs for this issue:

Affects: fedora-all [bug 1184029]
Affects: epel-all [bug 1184030]
Comment 2 Morten Stevens 2015-01-20 14:56:18 UTC 
Fedora updates:
https://admin.fedoraproject.org/updates/polarssl-1.2.12-3.fc20
https://admin.fedoraproject.org/updates/polarssl-1.3.9-3.fc21

Fedora-EPEL updates:
https://admin.fedoraproject.org/updates/polarssl-1.3.2-4.el5
https://admin.fedoraproject.org/updates/polarssl-1.3.2-4.el6
https://admin.fedoraproject.org/updates/polarssl-1.3.9-3.el7
Comment 3 Fedora Update System 2015-01-30 04:31:43 UTC 
polarssl-1.2.12-3.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 4 Fedora Update System 2015-01-30 04:41:17 UTC 
polarssl-1.3.9-3.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 5 Fedora Update System 2015-02-08 19:22:05 UTC 
polarssl-1.3.2-4.el5 has been pushed to the Fedora EPEL 5 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 6 Fedora Update System 2015-02-08 19:22:41 UTC 
polarssl-1.3.9-3.el7 has been pushed to the Fedora EPEL 7 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 7 Fedora Update System 2015-02-08 19:23:52 UTC 
polarssl-1.3.2-4.el6 has been pushed to the Fedora EPEL 6 stable repository.  If problems still persist, please make note of it in this bug report.
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