What’s Vulnerable › Vulnerabilities

CVE-2015-5522

• Severity: medium (CVSS 6.8 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2015-08-11 · updated 2026-06-17
• Weakness: CWE-119

Description

Heap-based buffer overflow in 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 a command character in an href.

Affected products

• Apple Iphone Os: through 8.2
• macOS: through 10.6.8
• Apple watchOS: through 1.0.1
• Canonical Ubuntu Linux: 12.04, 14.04, 15.04
• Debian Linux: 7.0, 8.0
• HTACG tidy-html5: through 4.9.30

References

• http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.html
• http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.html
• http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
• http://www.debian.org/security/2015/dsa-3309
• http://www.openwall.com/lists/oss-security/2015/06/04/2
• http://www.openwall.com/lists/oss-security/2015/07/13/7
• 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
• https://github.com/htacg/tidy-html5/issues/217
• https://support.apple.com/HT205212

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