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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2017-7805 Detail

Description

During TLS 1.2 exchanges, handshake hashes are generated which point to a message buffer. This saved data is used for later messages but in some cases, the handshake transcript can exceed the space available in the current buffer, causing the allocation of a new buffer. This leaves a pointer pointing to the old, freed buffer, resulting in a use-after-free when handshake hashes are then calculated afterwards. This can result in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html CVE, Mozilla Corporation
http://www.securityfocus.com/bid/101059 CVE, Mozilla Corporation Third Party Advisory  VDB Entry 
http://www.securitytracker.com/id/1039465 CVE, Mozilla Corporation Third Party Advisory  VDB Entry 
https://access.redhat.com/errata/RHSA-2017:2832 CVE, Mozilla Corporation Third Party Advisory 
https://bugzilla.mozilla.org/show_bug.cgi?id=1377618 CVE, Mozilla Corporation Issue Tracking  Vendor Advisory 
https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html CVE, Mozilla Corporation Third Party Advisory 
https://security.gentoo.org/glsa/201803-14 CVE, Mozilla Corporation Third Party Advisory 
https://www.debian.org/security/2017/dsa-3987 CVE, Mozilla Corporation Third Party Advisory 
https://www.debian.org/security/2017/dsa-3998 CVE, Mozilla Corporation Third Party Advisory 
https://www.debian.org/security/2017/dsa-4014 CVE, Mozilla Corporation Third Party Advisory 
https://www.mozilla.org/security/advisories/mfsa2017-21/ CVE, Mozilla Corporation Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2017-22/ CVE, Mozilla Corporation Vendor Advisory 
https://www.mozilla.org/security/advisories/mfsa2017-23/ CVE, Mozilla Corporation Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

7 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-7805
NVD Published Date:
06/11/2018
NVD Last Modified:
06/16/2026
Source:
Mozilla Corporation