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CVE-2016-7053

CMS Null dereference

N/A
Published: May 4, 2017 at 07:00 PM UTC
Updated: June 17, 2026 at 12:52 AM UTC
1 product affected across 1 vendorOpenSSL

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Severity
N/A
Exploit prediction
EPSS 22%

Description

In OpenSSL 1.1.0 before 1.1.0c, applications parsing invalid CMS structures can crash with a NULL pointer dereference. This is caused by a bug in the handling of the ASN.1 CHOICE type in OpenSSL 1.1.0 which can result in a NULL value being passed to the structure callback if an attempt is made to free certain invalid encodings. Only CHOICE structures using a callback which do not handle NULL value are affected.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (4)

VDB Entryx_refsource_BIDThird Party Advisory
Source: [email protected]
http://www.securityfocus.com/bid/94244
VDB Entryx_refsource_SECTRACK
Source: [email protected]
http://www.securitytracker.com/id/1037261
x_refsource_CONFIRM
Source: [email protected]
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03744en_us
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.openssl.org/news/secadv/20161110.txt

CVSS

5MEDIUM[email protected]
Confidentiality
NONE
Integrity
NONE
Availability
PARTIAL
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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