CVE-2010-4657
Published: 13 November 2019
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.
Notes
| Author | Note |
|---|---|
| jdstrand | per Debian, This was initially reported to be a bug in libxml2, but it later showed that PHP |
| mdeslaur | can't reproduce on quantal+ The reproducer only displays garbage if the suhosin patch is applied, which is why it doesn't appear to work on quantal+ Need to check if libxml2 still walks past the end of the string if the suhosin patch isn't applied. we will not be fixing this issue |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
php5 Launchpad, Ubuntu, Debian |
hardy |
Ignored
(end of life)
|
| lucid |
Ignored
(end of life)
|
|
| maverick |
Ignored
(end of life)
|
|
| natty |
Ignored
(end of life)
|
|
| oneiric |
Ignored
(end of life)
|
|
| precise |
Ignored
|
|
| quantal |
Not vulnerable
(5.4.6-1ubuntu1.1)
|
|
| raring |
Not vulnerable
(5.4.9-4ubuntu1)
|
|
| saucy |
Not vulnerable
(5.4.9-4ubuntu1)
|
|
| trusty |
Not vulnerable
(5.4.9-4ubuntu1)
|
|
| upstream |
Needs triage
|
|
| utopic |
Not vulnerable
(5.4.9-4ubuntu1)
|
|
| vivid |
Not vulnerable
(5.4.9-4ubuntu1)
|
|
| wily |
Not vulnerable
(5.4.9-4ubuntu1)
|
|
| xenial |
Does not exist
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |