CVE-2015-5523
Tidy HTML5 Parser heap-based Buffer Overflow
Description
The ParseValue function in lexer.c in tidy before 4.9.31 allows remote attackers to cause a denial of service (crash) via vectors involving multiple whitespace characters before an empty href, which triggers a large memory allocation.
INFO
Published Date :
Aug. 11, 2015, 2:59 p.m.
Last Modified :
Dec. 8, 2016, 3:10 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.9
Exploitability Score :
8.6
Public PoC/Exploit Available at Github
CVE-2015-5523 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2015-5523
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-2015-5523.
| URL | Resource |
|---|---|
| http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html | Mailing List Third Party Advisory |
| http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html | Mailing List Third Party Advisory |
| http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html | Mailing List Third Party Advisory |
| http://www.debian.org/security/2015/dsa-3309 | Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2015/06/04/2 | Exploit |
| http://www.openwall.com/lists/oss-security/2015/07/13/7 | Exploit |
| http://www.openwall.com/lists/oss-security/2015/07/15/3 | |
| http://www.securityfocus.com/bid/75037 | |
| http://www.securitytracker.com/id/1033703 | |
| http://www.ubuntu.com/usn/USN-2695-1 | Third Party Advisory |
| https://github.com/htacg/tidy-html5/issues/217#issuecomment-108565501 | Exploit |
| https://support.apple.com/HT205212 | Third Party Advisory |
| https://support.apple.com/HT205213 | Third Party Advisory |
| https://support.apple.com/HT205267 | Third Party 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).
A collection of vulnerabilities discovered by the AFL fuzzer (afl-fuzz)
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2015-5523 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2015-5523 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]
Dec. 08, 2016
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1033703 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 28, 2016
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/75037 [No Types Assigned] -
Modified Analysis by [email protected]
Aug. 29, 2016
Action Type Old Value New Value Changed CPE Configuration Configuration 1 OR *cpe:2.3:a:htacg:tidy:4.9.30:*:*:*:*:*:*:* (and previous) Configuration 1 OR *cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Configuration 2 OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Configuration 3 OR *cpe:2.3:o:apple:mac_os_x:10.6.8:*:*:*:*:*:*:* (and previous) *cpe:2.3:o:apple:watchos:1.0.1:*:*:*:*:*:*:* (and previous) *cpe:2.3:o:apple:iphone_os:8.2:*:*:*:*:*:*:* (and previous) Configuration 4 OR *cpe:2.3:a:htacg:tidy:4.9.30:*:*:*:*:*:*:* (and previous) Changed Reference Type https://support.apple.com/HT205267 No Types Assigned https://support.apple.com/HT205267 Third Party Advisory Changed Reference Type http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html No Types Assigned http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html Third Party Advisory, Mailing List Changed Reference Type http://www.ubuntu.com/usn/USN-2695-1 No Types Assigned http://www.ubuntu.com/usn/USN-2695-1 Third Party Advisory Changed Reference Type http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html No Types Assigned http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html Third Party Advisory, Mailing List Changed Reference Type http://www.debian.org/security/2015/dsa-3309 No Types Assigned http://www.debian.org/security/2015/dsa-3309 Third Party Advisory Changed Reference Type http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html No Types Assigned http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html Third Party Advisory, Mailing List Changed Reference Type https://support.apple.com/HT205212 No Types Assigned https://support.apple.com/HT205212 Third Party Advisory Changed Reference Type https://support.apple.com/HT205213 No Types Assigned https://support.apple.com/HT205213 Third Party Advisory -
CVE Modified by [email protected]
Oct. 10, 2015
Action Type Old Value New Value Added Reference https://support.apple.com/HT205267 Added Reference http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html Added Reference http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html Added Reference https://support.apple.com/HT205213 -
CVE Modified by [email protected]
Sep. 19, 2015
Action Type Old Value New Value Added Reference http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html Added Reference https://support.apple.com/HT205212 -
CVE Translated by [email protected]
Aug. 26, 2015
Action Type Old Value New Value Removed Translation Vulnerabilidad en la función ParseValue en lexer.c en limpio anterior a 4.9.31 permite a atacantes remotos provocar una denegación de servicio (caída) a través de vectores que involucran múltiples espacios en blanco antes de un href vacío, lo que desencadena una asignación de memoria de gran tamaño. Added Translation Vulnerabilidad en la función ParseValue en lexer.c en tidy en versiones anteriores a 4.9.31, permite a atacantes remotos provocar una denegación de servicio (caída) a través de vectores implicando múltiples espacios en blanco antes de un href vacío, lo que desencadena una asignación de memoria de gran tamaño. -
Modified Analysis by [email protected]
Aug. 11, 2015
Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:a:htacg:tidy:4.9.30:*:*:*:*:*:*:* (and previous) Added CVSS V2 (AV:N/AC:M/Au:N/C:N/I:N/A:P) Changed Reference Type https://github.com/htacg/tidy-html5/issues/217#issuecomment-108565501 No Types Assigned https://github.com/htacg/tidy-html5/issues/217#issuecomment-108565501 Exploit Changed Reference Type http://www.openwall.com/lists/oss-security/2015/07/13/7 No Types Assigned http://www.openwall.com/lists/oss-security/2015/07/13/7 Exploit Changed Reference Type http://www.openwall.com/lists/oss-security/2015/06/04/2 No Types Assigned http://www.openwall.com/lists/oss-security/2015/06/04/2 Exploit Added CWE CWE-119 -
Initial Analysis by [email protected]
Aug. 11, 2015
Action Type Old Value New Value -
Initial Analysis by [email protected]
Aug. 11, 2015
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2015-5523 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-2015-5523
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.99 }} 0.45%
score
0.88792
percentile