VulnerabilityModified
CVE-2015-5523
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.
MEDIUM 4.3EPSS 3.84%
Does this matter?
Lower severity and a low EPSS score (3.84%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
- EPSS
- 3.84% probability · 90th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- canonical/ubuntu linux · debian/debian linux · apple/iphone os · apple/mac os x · apple/watchos · htacg/tidy
- Source
- cve@mitre.org
References
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.htmlMailing List, Third Party Advisory
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.htmlMailing List, Third Party Advisory
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.htmlMailing List, Third Party Advisory
- http://www.debian.org/security/2015/dsa-3309Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/06/04/2Exploit
- http://www.openwall.com/lists/oss-security/2015/07/13/7Exploit
- 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-2695-1Third Party Advisory
- https://github.com/htacg/tidy-html5/issues/217#issuecomment-108565501Exploit
- https://support.apple.com/HT205212Third Party Advisory
- https://support.apple.com/HT205213Third Party Advisory
- https://support.apple.com/HT205267Third Party Advisory
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00001.htmlMailing List, Third Party Advisory
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00005.htmlMailing List, Third Party Advisory
- http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.htmlMailing List, Third Party Advisory
- http://www.debian.org/security/2015/dsa-3309Third Party Advisory
- http://www.openwall.com/lists/oss-security/2015/06/04/2Exploit
- http://www.openwall.com/lists/oss-security/2015/07/13/7Exploit
- 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-2695-1Third Party Advisory
- https://github.com/htacg/tidy-html5/issues/217#issuecomment-108565501Exploit
- https://support.apple.com/HT205212Third Party Advisory
- https://support.apple.com/HT205213Third Party Advisory
- https://support.apple.com/HT205267Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.