CVE-2023-50262
published 2023-12-13CVE-2023-50262: Dompdf is an HTML to PDF converter for PHP. When parsing SVG images Dompdf performs an initial validation to ensure that paths within the SVG are allowed. One…
PriorityP341high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.46%
70.4th percentile
Dompdf is an HTML to PDF converter for PHP. When parsing SVG images Dompdf performs an initial validation to ensure that paths within the SVG are allowed. One of the validations is that the SVG document does not reference itself. However, prior to version 2.0.4, a recursive chained using two or more SVG documents is not correctly validated. Depending on the system configuration and attack pattern this could exhaust the memory available to the executing process and/or to the server itself.
php-svg-lib, when run in isolation, does not support SVG references for `image` elements. However, when used in combination with Dompdf, php-svg-lib will process SVG images referenced by an `image` element. Dompdf currently includes validation to prevent self-referential `image` references, but a chained reference is not checked. A malicious actor may thus trigger infinite recursion by chaining references between two or more SVG images.
When Dompdf parses a malicious payload, it will crash due after exceeding the allowed execution time or memory usage. An attacker sending multiple request to a system can potentially cause resource exhaustion to the point that the system is unable to handle incoming request.
Version 2.0.4 contains a fix for this issue.
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | php-dompdf | < php-dompdf 2.0.4+dfsg-1 (sid) | php-dompdf 2.0.4+dfsg-1 (sid) |
| dompdf | dompdf | < 2.0.4 | 2.0.4 |
| dompdf | dompdf | >= 0 < 2.0.4 | 2.0.4 |
| dompdf_project | dompdf | <= 2.0.3 | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_debian5.3MEDIUM
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OSV
CVE-2023-50262: Dompdf is an HTML to PDF converter for PHP
osv·2023-12-13·CVSS 7.5
CVE-2023-50262 [HIGH] CVE-2023-50262: Dompdf is an HTML to PDF converter for PHP
Dompdf is an HTML to PDF converter for PHP. When parsing SVG images Dompdf performs an initial validation to ensure that paths within the SVG are allowed. One of the validations is that the SVG document does not reference itself. However, prior to version 2.0.4, a recursive chained using two or more SVG documents is not correctly validated. Depending on the system configuration and attack pattern this could exhaust the memory available to the executing process and/or to the server itself. php-svg-lib, when run in isolation, does not support SVG references for `image` elements. However, when used in combination with Dompdf, php-svg-lib will process SVG images referenced by an `image` element. Dompdf currently includes validation to prevent self-referential `image` references, but a chained
OSV
Denial of service caused by infinite recursion when parsing SVG images
osv·2023-12-13
CVE-2023-50262 [MEDIUM] Denial of service caused by infinite recursion when parsing SVG images
Denial of service caused by infinite recursion when parsing SVG images
### Summary
When parsing SVG images Dompdf performs an initial validation to ensure that paths within the SVG are allowed. One of the validations is that the [SVG document does not reference itself](https://github.com/dompdf/dompdf/blob/v2.0.3/src/Image/Cache.php#L136-L153). However, a recursive chained using two or more SVG documents is not correctly validated. Depending on the system configuration and attack pattern this could exhaust the memory available to the executing process and/or to the server itself.
### Details
php-svg-lib, when run in isolation, does not support SVG references for `image` elements. An SVG document can, however, be referenced and Dompdf will run that reference through the same validation. D
GHSA
Denial of service caused by infinite recursion when parsing SVG images
ghsa·2023-12-13
CVE-2023-50262 [MEDIUM] CWE-20 Denial of service caused by infinite recursion when parsing SVG images
Denial of service caused by infinite recursion when parsing SVG images
### Summary
When parsing SVG images Dompdf performs an initial validation to ensure that paths within the SVG are allowed. One of the validations is that the [SVG document does not reference itself](https://github.com/dompdf/dompdf/blob/v2.0.3/src/Image/Cache.php#L136-L153). However, a recursive chained using two or more SVG documents is not correctly validated. Depending on the system configuration and attack pattern this could exhaust the memory available to the executing process and/or to the server itself.
### Details
php-svg-lib, when run in isolation, does not support SVG references for `image` elements. An SVG document can, however, be referenced and Dompdf will run that reference through the same validation. D
Debian
CVE-2023-50262: php-dompdf - Dompdf is an HTML to PDF converter for PHP. When parsing SVG images Dompdf perfo...
vendor_debian·2023·CVSS 5.3
CVE-2023-50262 [MEDIUM] CVE-2023-50262: php-dompdf - Dompdf is an HTML to PDF converter for PHP. When parsing SVG images Dompdf perfo...
Dompdf is an HTML to PDF converter for PHP. When parsing SVG images Dompdf performs an initial validation to ensure that paths within the SVG are allowed. One of the validations is that the SVG document does not reference itself. However, prior to version 2.0.4, a recursive chained using two or more SVG documents is not correctly validated. Depending on the system configuration and attack pattern this could exhaust the memory available to the executing process and/or to the server itself. php-svg-lib, when run in isolation, does not support SVG references for `image` elements. However, when used in combination with Dompdf, php-svg-lib will process SVG images referenced by an `image` element. Dompdf currently includes validation to prevent self-referential `image` references, but a chained
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/dompdf/dompdf/blob/v2.0.3/src/Image/Cache.php#L136-L153https://github.com/dompdf/dompdf/commit/41cbac16f3cf56affa49f06e8dae66d0eac2b593https://github.com/dompdf/dompdf/security/advisories/GHSA-3qx2-6f78-w2j2https://github.com/dompdf/dompdf/blob/v2.0.3/src/Image/Cache.php#L136-L153https://github.com/dompdf/dompdf/commit/41cbac16f3cf56affa49f06e8dae66d0eac2b593https://github.com/dompdf/dompdf/security/advisories/GHSA-3qx2-6f78-w2j2
2023-12-13
Published