CVE-2017-7805
Mozilla Firefox TLS Use-After-Free Vulnerability
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.
INFO
Published Date :
June 11, 2018, 9:29 p.m.
Last Modified :
Oct. 17, 2018, 1:30 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2017-7805
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-7805.
| URL | Resource |
|---|---|
| http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html | |
| http://www.securityfocus.com/bid/101059 | Third Party Advisory VDB Entry |
| http://www.securitytracker.com/id/1039465 | Third Party Advisory VDB Entry |
| https://access.redhat.com/errata/RHSA-2017:2832 | Third Party Advisory |
| https://bugzilla.mozilla.org/show_bug.cgi?id=1377618 | Issue Tracking Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html | Third Party Advisory |
| https://security.gentoo.org/glsa/201803-14 | Third Party Advisory |
| https://www.debian.org/security/2017/dsa-3987 | Third Party Advisory |
| https://www.debian.org/security/2017/dsa-3998 | Third Party Advisory |
| https://www.debian.org/security/2017/dsa-4014 | Third Party Advisory |
| https://www.mozilla.org/security/advisories/mfsa2017-21/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2017-22/ | Vendor Advisory |
| https://www.mozilla.org/security/advisories/mfsa2017-23/ | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-7805 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-7805 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Oct. 17, 2018
Action Type Old Value New Value Added Reference http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 02, 2018
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://access.redhat.com/errata/RHSA-2017:2832 No Types Assigned https://access.redhat.com/errata/RHSA-2017:2832 Third Party Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2017-22/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2017-22/ Vendor Advisory Changed Reference Type https://bugzilla.mozilla.org/show_bug.cgi?id=1377618 No Types Assigned https://bugzilla.mozilla.org/show_bug.cgi?id=1377618 Issue Tracking, Vendor Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2017-23/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2017-23/ Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/101059 No Types Assigned http://www.securityfocus.com/bid/101059 Third Party Advisory, VDB Entry Changed Reference Type https://www.debian.org/security/2017/dsa-4014 No Types Assigned https://www.debian.org/security/2017/dsa-4014 Third Party Advisory Changed Reference Type https://www.mozilla.org/security/advisories/mfsa2017-21/ No Types Assigned https://www.mozilla.org/security/advisories/mfsa2017-21/ Vendor Advisory Changed Reference Type https://security.gentoo.org/glsa/201803-14 No Types Assigned https://security.gentoo.org/glsa/201803-14 Third Party Advisory Changed Reference Type https://www.debian.org/security/2017/dsa-3987 No Types Assigned https://www.debian.org/security/2017/dsa-3987 Third Party Advisory Changed Reference Type https://www.debian.org/security/2017/dsa-3998 No Types Assigned https://www.debian.org/security/2017/dsa-3998 Third Party Advisory Changed Reference Type https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html No Types Assigned https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html Third Party Advisory Changed Reference Type http://www.securitytracker.com/id/1039465 No Types Assigned http://www.securitytracker.com/id/1039465 Third Party Advisory, VDB Entry Added CWE CWE-416 Added CPE Configuration OR *cpe:2.3:a:mozilla:firefox:56.0:*:*:*:*:*:*:* *cpe:2.3:a:mozilla:firefox_esr:52.4.0:*:*:*:*:*:*:* *cpe:2.3:a:mozilla:thunderbird:52.4.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jun. 13, 2018
Action Type Old Value New Value Added Reference https://www.debian.org/security/2017/dsa-4014 [No Types Assigned] Added Reference https://www.debian.org/security/2017/dsa-3998 [No Types Assigned] Added Reference https://www.debian.org/security/2017/dsa-3987 [No Types Assigned] Added Reference https://security.gentoo.org/glsa/201803-14 [No Types Assigned] Added Reference https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2017:2832 [No Types Assigned] Added Reference http://www.securitytracker.com/id/1039465 [No Types Assigned] Added Reference http://www.securityfocus.com/bid/101059 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-7805 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-7805
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.97 }} 0.01%
score
0.83694
percentile