CVE-2015-5523

Published: Aug 11, 2015Modified: May 6, 2026

4.3

Vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability: 8.6 / Impact: 2.9

Source: NVD

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.

Affected (9)

Products: Canonical: Ubuntu Linux · Debian: Debian Linux · Apple: Iphone Os, Mac Os X, Watchos · +1 more

Show all products

Canonical: Ubuntu Linux · Debian: Debian Linux · Apple: Iphone Os, Mac Os X, Watchos · Htacg: Tidy

1 product

1 product

3 products

1 product

Configuration A

3 vulnerable

Vulnerable Software	Affected Versions
Canonical Ubuntu Linux	Version 12.04
Canonical Ubuntu Linux	Version 14.04
Canonical Ubuntu Linux	Version 15.04

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 7.0
Debian Debian Linux	Version 8.0

Configuration C

3 vulnerable

Vulnerable Software	Affected Versions
Apple Iphone Os	Up to 8.2
Apple Mac Os X	Up to 10.6.8
Apple Watchos	Up to 1.0.1

Configuration D

1 vulnerable

Vulnerable Software	Affected Versions
Htacg Tidy	Up to 4.9.30

Related CWEs

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (28)

http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

http://www.debian.org/security/2015/dsa-3309

Source: cve@mitre.org

Third Party Advisory

http://www.openwall.com/lists/oss-security/2015/06/04/2

Source: cve@mitre.org

Exploit

http://www.openwall.com/lists/oss-security/2015/07/13/7

Source: cve@mitre.org

Exploit

http://www.openwall.com/lists/oss-security/2015/07/15/3

Source: cve@mitre.org

http://www.securityfocus.com/bid/75037

Source: cve@mitre.org

http://www.securitytracker.com/id/1033703

Source: cve@mitre.org

http://www.ubuntu.com/usn/USN-2695-1

Source: cve@mitre.org

Third Party Advisory

https://github.com/htacg/tidy-html5/issues/217#issuecomment-108565501

Source: cve@mitre.org

Exploit

https://support.apple.com/HT205212

Source: cve@mitre.org

Third Party Advisory

https://support.apple.com/HT205213

Source: cve@mitre.org

Third Party Advisory

https://support.apple.com/HT205267

Source: cve@mitre.org

Third Party Advisory

http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html