CVE-2015-5523

high

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.

References

Advisories
More

https://support.apple.com/HT205267

https://support.apple.com/HT205213

https://support.apple.com/HT205212

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

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

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

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

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

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

https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-5478

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

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

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

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

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

Details

Source: Mitre, NVD

Published: 2015-08-11

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 4.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.03842

Detections

Analytics