CVE-2024-25117
published 2024-02-21CVE-2024-25117: php-svg-lib is a scalable vector graphics (SVG) file parsing/rendering library. Prior to version 0.5.2, php-svg-lib fails to validate that font-family doesn't…
PriorityP353critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.93%
56.2th percentile
php-svg-lib is a scalable vector graphics (SVG) file parsing/rendering library. Prior to version 0.5.2, php-svg-lib fails to validate that font-family doesn't contain a PHAR url, which might leads to RCE on PHP < 8.0, and doesn't validate if external references are allowed. This might leads to bypass of restrictions or RCE on projects that are using it, if they do not strictly revalidate the fontName that is passed by php-svg-lib. The `Style::fromAttributes(`), or the `Style::parseCssStyle()` should check the content of the `font-family` and prevents it to use a PHAR url, to avoid passing an invalid and dangerous `fontName` value to other libraries. The same check as done in the `Style::fromStyleSheets` might be reused. Libraries using this library as a dependency might be vulnerable to some bypass of restrictions, or even remote code execution, if they do not double check the value of the `fontName` that is passed by php-svg-lib. Version 0.5.2 contains a fix for this issue.
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | php-dompdf-svg-lib | < php-dompdf-svg-lib 0.5.0-3+deb12u1 (bookworm) | php-dompdf-svg-lib 0.5.0-3+deb12u1 (bookworm) |
| dompdf | php-svg-lib | < 0.5.2 | 0.5.2 |
| phenx | php-svg-lib | >= 0 < 0.5.2 | 0.5.2 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
osv9.8CRITICAL
vendor_debian6.8MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Debian
CVE-2024-25117: php-dompdf-svg-lib - php-svg-lib is a scalable vector graphics (SVG) file parsing/rendering library. ...
vendor_debian·2024·CVSS 6.8
CVE-2024-25117 [MEDIUM] CVE-2024-25117: php-dompdf-svg-lib - php-svg-lib is a scalable vector graphics (SVG) file parsing/rendering library. ...
php-svg-lib is a scalable vector graphics (SVG) file parsing/rendering library. Prior to version 0.5.2, php-svg-lib fails to validate that font-family doesn't contain a PHAR url, which might leads to RCE on PHP < 8.0, and doesn't validate if external references are allowed. This might leads to bypass of restrictions or RCE on projects that are using it, if they do not strictly revalidate the fontName that is passed by php-svg-lib. The `Style::fromAttributes(`), or the `Style::parseCssStyle()` should check the content of the `font-family` and prevents it to use a PHAR url, to avoid passing an invalid and dangerous `fontName` value to other libraries. The same check as done in the `Style::fromStyleSheets` might be reused. Libraries using this library as a dependency might be vulnerable to so
OSV
php-svg-lib lacks path validation on font through SVG inline styles
osv·2024-02-21
CVE-2024-25117 [MEDIUM] php-svg-lib lacks path validation on font through SVG inline styles
php-svg-lib lacks path validation on font through SVG inline styles
### Summary
php-svg-lib fails to validate that font-family doesn't contain a PHAR url, which might leads to RCE on PHP href, 0, 7)) === "phar://"
|| ($this->document->allowExternalReferences === false && \strtolower(\substr($this->href, 0, 5)) !== "data:")
)
) {
unset($style["font-family"]);
}
```
### PoC
Parsing the following SVG :
```
My
```
will pass the `phar:///path/to/whatever.phar/blaklis` as `$family` in `SurfaceCpdf::setFont`, which is then passed to the canvas `selectFont` as a `$fontName`.
### Impact
Libraries using this library as a dependency might be vulnerable to some bypass of restrictions, or even RCE, if they do not double check the value of the `fontName` that is passed by php-svg-lib
OSV
CVE-2024-25117: php-svg-lib is a scalable vector graphics (SVG) file parsing/rendering library
osv·2024-02-21·CVSS 9.8
CVE-2024-25117 [CRITICAL] CVE-2024-25117: php-svg-lib is a scalable vector graphics (SVG) file parsing/rendering library
php-svg-lib is a scalable vector graphics (SVG) file parsing/rendering library. Prior to version 0.5.2, php-svg-lib fails to validate that font-family doesn't contain a PHAR url, which might leads to RCE on PHP < 8.0, and doesn't validate if external references are allowed. This might leads to bypass of restrictions or RCE on projects that are using it, if they do not strictly revalidate the fontName that is passed by php-svg-lib. The `Style::fromAttributes(`), or the `Style::parseCssStyle()` should check the content of the `font-family` and prevents it to use a PHAR url, to avoid passing an invalid and dangerous `fontName` value to other libraries. The same check as done in the `Style::fromStyleSheets` might be reused. Libraries using this library as a dependency might be vulnerable to so
GHSA
php-svg-lib lacks path validation on font through SVG inline styles
ghsa·2024-02-21
CVE-2024-25117 [MEDIUM] CWE-502 php-svg-lib lacks path validation on font through SVG inline styles
php-svg-lib lacks path validation on font through SVG inline styles
### Summary
php-svg-lib fails to validate that font-family doesn't contain a PHAR url, which might leads to RCE on PHP href, 0, 7)) === "phar://"
|| ($this->document->allowExternalReferences === false && \strtolower(\substr($this->href, 0, 5)) !== "data:")
)
) {
unset($style["font-family"]);
}
```
### PoC
Parsing the following SVG :
```
My
```
will pass the `phar:///path/to/whatever.phar/blaklis` as `$family` in `SurfaceCpdf::setFont`, which is then passed to the canvas `selectFont` as a `$fontName`.
### Impact
Libraries using this library as a dependency might be vulnerable to some bypass of restrictions, or even RCE, if they do not double check the value of the `fontName` that is passed by php-svg-lib
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/dompdf/php-svg-lib/commit/732faa9fb4309221e2bd9b2fda5de44f947133aahttps://github.com/dompdf/php-svg-lib/commit/8ffcc41bbde39f09f94b9760768086f12bbdce42https://github.com/dompdf/php-svg-lib/security/advisories/GHSA-f3qr-qr4x-j273https://github.com/dompdf/php-svg-lib/commit/732faa9fb4309221e2bd9b2fda5de44f947133aahttps://github.com/dompdf/php-svg-lib/commit/8ffcc41bbde39f09f94b9760768086f12bbdce42https://github.com/dompdf/php-svg-lib/security/advisories/GHSA-f3qr-qr4x-j273
2024-02-21
Published