High severity · published Nov 13, 2019
CVE-2010-4657
PHP5 before 5.4.4 allows passing invalid utf-8 strings via the xmlTextWriterWriteAttribute, which are then misparsed by libxml2
7.5
CVSS
1.5%
EPSS
No
On KEV
Description
PHP5 before 5.4.4 allows passing invalid utf-8 strings via the xmlTextWriterWriteAttribute, which are then misparsed by libxml2. This results in memory leak into the resulting output.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.5% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
PHP · PHP
5.0.0 before 5.4.4 · source: NVD
DL
Debian Linux · Debian
8.0 · source: NVD
EL
Enterprise Linux · Redhat
5.0; 6.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2010-4657
CVE.org
https://www.cve.org/CVERecord?id=CVE-2010-4657
Third Party Advisory
https://access.redhat.com/security/cve/cve-2010-4657
Third Party Advisory
https://bugs.launchpad.net/php/%2Bbug/655442
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4657
Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2010-4657
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