# CVE-2024-27355: php-phpseclib: An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36

CVE-2024-27355 is fixed in 4 products on 1 platform, first by DEBIAN-CVE-2024-27355, released March 1, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2024-27355
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0057
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 1, 2024

## Description

An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. When processing the ASN.1 object identifier of a certificate, a sub identifier may be provided that leads to a denial of service (CPU consumption for decodeOID).

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | php-phpseclib Debian 12.15 (bookworm) | 2.0.42-1+deb12u2 | [DEBIAN-CVE-2024-27355](https://patchblox.com/security/data/fix/linux/debian-cve-2024-27355.md) | Mar 1, 2024 |
| Linux | php-phpseclib Debian 13.5 (trixie) | 2.0.47-1 | [DEBIAN-CVE-2024-27355](https://patchblox.com/security/data/fix/linux/debian-cve-2024-27355.md) | Mar 1, 2024 |
| Linux | php-phpseclib Debian 14 | 2.0.47-1 | [DEBIAN-CVE-2024-27355](https://patchblox.com/security/data/fix/linux/debian-cve-2024-27355.md) | Mar 1, 2024 |
| Linux | php-phpseclib Ubuntu 20.04 LTS (focal) | 2.0.23-2ubuntu0.1~esm2 | [php-phpseclib 2.0.23-2ubuntu0.1~esm2](https://patchblox.com/security/data/fix/linux/ubuntu-focal-php-phpseclib-2.0.23-2ubuntu0.1-esm2.md) | Jun 27, 2024 |
| Linux | php-phpseclib Ubuntu 22.04.1 LTS (jammy) | 2.0.36-1ubuntu0.1~esm2 | [php-phpseclib 2.0.36-1ubuntu0.1~esm2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-php-phpseclib-2.0.36-1ubuntu0.1-esm2.md) | Jun 27, 2024 |
| Linux | php-phpseclib3 Debian 12.15 (bookworm) | 3.0.19-1+deb12u3 | [DEBIAN-CVE-2024-27355](https://patchblox.com/security/data/fix/linux/debian-cve-2024-27355.md) | Mar 1, 2024 |
| Linux | php-phpseclib3 Debian 13.5 (trixie) | 3.0.36-1 | [DEBIAN-CVE-2024-27355](https://patchblox.com/security/data/fix/linux/debian-cve-2024-27355.md) | Mar 1, 2024 |
| Linux | php-phpseclib3 Debian 14 | 3.0.36-1 | [DEBIAN-CVE-2024-27355](https://patchblox.com/security/data/fix/linux/debian-cve-2024-27355.md) | Mar 1, 2024 |
| Linux | php-phpseclib3 Ubuntu 22.04.1 LTS (jammy) | 3.0.13-1ubuntu0.1~esm1 | [php-phpseclib3 3.0.13-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-php-phpseclib3-3.0.13-1ubuntu0.1-esm1.md) | Jun 27, 2024 |
| Linux | php-seclib Ubuntu 20.04 LTS (focal) | 1.0.18-2ubuntu0.1~esm1 | [php-seclib 1.0.18-2ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-php-seclib-1.0.18-2ubuntu0.1-esm1.md) | Jun 27, 2024 |
| Linux | php-seclib Ubuntu 22.04.1 LTS (jammy) | 1.0.20-1ubuntu0.1~esm1 | [php-seclib 1.0.20-1ubuntu0.1~esm1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-php-seclib-1.0.20-1ubuntu0.1-esm1.md) | Jun 27, 2024 |
| Linux | phpseclib Debian 12.15 (bookworm) | 1.0.20-1+deb12u2 | [DEBIAN-CVE-2024-27355](https://patchblox.com/security/data/fix/linux/debian-cve-2024-27355.md) | Mar 1, 2024 |
| Linux | phpseclib Debian 13.5 (trixie) | 1.0.23-1 | [DEBIAN-CVE-2024-27355](https://patchblox.com/security/data/fix/linux/debian-cve-2024-27355.md) | Mar 1, 2024 |

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