Vulnerability · Published Nov 27, 2023 · Assigned by mitre
CVE-2023-49316
High 7.5
In plain English
A high-severity security flaw in the php-phpseclib3 package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)0.8%top 43.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees can lead to a denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | php-phpseclib3 | 3.0.19-1+deb12u1 | DEBIAN-CVE-2023-49316 |
| Debian:13 | php-phpseclib3 | 3.0.34-1 | DEBIAN-CVE-2023-49316 |
| Debian:14 | php-phpseclib3 | 3.0.34-1 | DEBIAN-CVE-2023-49316 |
| Packagist | phpseclib/phpseclib | 3.0.34 | GHSA-2f25-pfq3-c7h8 |
| Ubuntu:24.04:LTS | php-phpseclib3 | no fix listed | UBUNTU-CVE-2023-49316 |