CVE catalog
CVE-2024-27354
phpseclib vulnerability
- Severity
- High · CVSS 8.2
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.60% · Oct 27, 2026
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. An attacker can construct a malformed certificate containing an extremely large prime to cause a denial of service (CPU consumption for an isPrime primality check). NOTE: this issue was introduced when attempting to fix CVE-2023-27560.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | phpseclib | sid | 1.0.30-1 | fixed |
| Debian | phpseclib | trixie | 1.0.23-6+deb13u3 | fixed |
| Debian | phpseclib | trixie-security | 1.0.23-6+deb13u1 | fixed |
| Debian | phpseclib | bookworm | 1.0.20-1+deb12u5 | fixed |
| Debian | phpseclib | bookworm-security | 1.0.20-1+deb12u3 | fixed |
| Debian | php-phpseclib | sid | 2.0.55-1 | fixed |
| Debian | php-phpseclib | forky | 2.0.55-1 | fixed |
| Debian | php-phpseclib | trixie | 2.0.48-3+deb13u3 | fixed |
| Debian | php-phpseclib | trixie-security | 2.0.48-3+deb13u1 | fixed |
| Debian | php-phpseclib | bookworm | 2.0.42-1+deb12u5 | fixed |
| Debian | php-phpseclib | bookworm-security | 2.0.42-1+deb12u3 | fixed |
| Debian | php-phpseclib3 | sid | 3.0.57-1 | fixed |
| Debian | php-phpseclib3 | forky | 3.0.57-1 | fixed |
| Debian | php-phpseclib3 | trixie | 3.0.43-2+deb13u3 | fixed |
| Debian | php-phpseclib3 | trixie-security | 3.0.43-2+deb13u1 | fixed |
| Debian | php-phpseclib3 | bookworm | 3.0.19-1+deb12u6 | fixed |
| Debian | php-phpseclib3 | bookworm-security | 3.0.19-1+deb12u4 | fixed |
| Ubuntu | phpseclib | noble | 1.0.23-1ubuntu0.1~esm1 | fixed |
| Ubuntu | php-seclib | noble | 1.0.23-1ubuntu0.1~esm1 | fixed |
| Ubuntu | php-phpseclib | pro | 2.0.30-2ubuntu1 | vulnerable |
| Ubuntu | php-phpseclib | pro | 2.0.34-1 | vulnerable |
| Ubuntu | php-phpseclib | pro | 2.0.35-1 | vulnerable |
| Ubuntu | php-phpseclib | pro | 2.0.36-1 | vulnerable |
| Ubuntu | php-phpseclib | pro | 2.0.36-1ubuntu0.1~esm2 | fixed |
| Ubuntu | phpseclib | pro | 1.0.19-3ubuntu2 | vulnerable |
| Ubuntu | phpseclib | pro | 1.0.19-3ubuntu3 | vulnerable |
| Ubuntu | phpseclib | pro | 1.0.20-1 | vulnerable |
| Ubuntu | phpseclib | pro | 1.0.20-1ubuntu0.1~esm1 | fixed |
| Ubuntu | phpseclib | 22.04 | 1.0.19-3ubuntu2 | vulnerable |
| Ubuntu | phpseclib | 22.04 | 1.0.19-3ubuntu3 | vulnerable |
| Ubuntu | phpseclib | 22.04 | 1.0.20-1 | vulnerable |
| Ubuntu | phpseclib | 22.04 | 1.0.20-1+deb12u3build0.22.04.1 | fixed |
| Ubuntu | php-phpseclib3 | pro | 3.0.9-1 | vulnerable |
| Ubuntu | php-phpseclib3 | pro | 3.0.10-1 | vulnerable |
| Ubuntu | php-phpseclib3 | pro | 3.0.12-2 | vulnerable |
| Ubuntu | php-phpseclib3 | pro | 3.0.13-1 | vulnerable |
| Ubuntu | php-phpseclib3 | pro | 3.0.13-1ubuntu0.1~esm1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | phpseclib | source | sid | 1.0.23-1 | not yet assigned | Not reported | Not reported |
| Debian | phpseclib | source | trixie | 1.0.23-1 | not yet assigned | Not reported | Not reported |
| Debian | phpseclib | source | bookworm | 1.0.20-1+deb12u2 | not yet assigned | Not reported | Not reported |
| Debian | php-phpseclib | source | sid | 2.0.47-1 | not yet assigned | Not reported | Not reported |
| Debian | php-phpseclib | source | forky | 2.0.47-1 | not yet assigned | Not reported | Not reported |
| Debian | php-phpseclib | source | trixie | 2.0.47-1 | not yet assigned | Not reported | Not reported |
| Debian | php-phpseclib | source | bookworm | 2.0.42-1+deb12u2 | not yet assigned | Not reported | Not reported |
| Debian | php-phpseclib3 | source | sid | 3.0.36-1 | not yet assigned | Not reported | Not reported |
| Debian | php-phpseclib3 | source | forky | 3.0.36-1 | not yet assigned | Not reported | Not reported |
| Debian | php-phpseclib3 | source | trixie | 3.0.36-1 | not yet assigned | Not reported | Not reported |
| Debian | php-phpseclib3 | source | bookworm | 3.0.19-1+deb12u3 | not yet assigned | Not reported | Not reported |
| Ubuntu | phpseclib | deb | noble | 1.0.23-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | php-seclib | deb | noble | 1.0.23-1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | php-phpseclib | deb | pro | 2.0.36-1ubuntu0.1~esm2 | Not reported | UBUNTU-CVE-2024-27354 | Not reported |
| Ubuntu | phpseclib | deb | pro | 1.0.20-1ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2024-27354 | Not reported |
| Ubuntu | phpseclib | deb | 22.04 | 1.0.20-1+deb12u3build0.22.04.1 | Not reported | UBUNTU-CVE-2024-27354 | Not reported |
| Ubuntu | php-phpseclib3 | deb | pro | 3.0.13-1ubuntu0.1~esm1 | Not reported | UBUNTU-CVE-2024-27354 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [php-phpseclib]Fixed
Details (4)
2.0.42-1+deb12u5· all · bookwormFixed · Fixed:
2.0.42-1+deb12u2usn · php-phpseclib · debian · bookworm; usn · php-phpseclib · debian · 12
2.0.42-1+deb12u5· all · bookwormFixed · Fixed:
2.0.42-1+deb12u2usn · php-phpseclib · debian · bookworm; usn · php-phpseclib · debian · 12
2.0.42-1+deb12u3· all · bookworm-securityFixed · Fixed:
2.0.42-1+deb12u2usn · php-phpseclib · debian · bookworm; usn · php-phpseclib · debian · 12
2.0.42-1+deb12u3· all · bookworm-securityFixed · Fixed:
2.0.42-1+deb12u2usn · php-phpseclib · debian · bookworm; usn · php-phpseclib · debian · 12
- [php-phpseclib3]Fixed
Details (4)
3.0.19-1+deb12u6· all · bookwormFixed · Fixed:
3.0.19-1+deb12u3usn · php-phpseclib3 · debian · bookworm; usn · php-phpseclib3 · debian · 12
3.0.19-1+deb12u6· all · bookwormFixed · Fixed:
3.0.19-1+deb12u3usn · php-phpseclib3 · debian · bookworm; usn · php-phpseclib3 · debian · 12
3.0.19-1+deb12u4· all · bookworm-securityFixed · Fixed:
3.0.19-1+deb12u3usn · php-phpseclib3 · debian · bookworm; usn · php-phpseclib3 · debian · 12
3.0.19-1+deb12u4· all · bookworm-securityFixed · Fixed:
3.0.19-1+deb12u3usn · php-phpseclib3 · debian · bookworm; usn · php-phpseclib3 · debian · 12
- [php-seclib]Fixed
Source package: [phpseclib]
Details (4)
1.0.20-1+deb12u5· all · bookwormFixed · Fixed:
1.0.20-1+deb12u2usn · phpseclib · debian · bookworm; usn · phpseclib · debian · 12
1.0.20-1+deb12u5· all · bookwormFixed · Fixed:
1.0.20-1+deb12u2usn · phpseclib · debian · bookworm; usn · phpseclib · debian · 12
1.0.20-1+deb12u3· all · bookworm-securityFixed · Fixed:
1.0.20-1+deb12u2usn · phpseclib · debian · bookworm; usn · phpseclib · debian · 12
1.0.20-1+deb12u3· all · bookworm-securityFixed · Fixed:
1.0.20-1+deb12u2usn · phpseclib · debian · bookworm; usn · phpseclib · debian · 12
[Debian 13 (Trixie)]
- [php-phpseclib]Fixed
Details (4)
2.0.48-3+deb13u3· all · trixieFixed · Fixed:
2.0.47-1usn · php-phpseclib · debian · 13
2.0.48-3+deb13u3· all · trixieFixed · Fixed:
2.0.47-1usn · php-phpseclib · debian · 13
2.0.48-3+deb13u1· all · trixie-securityFixed · Fixed:
2.0.47-1usn · php-phpseclib · debian · 13
2.0.48-3+deb13u1· all · trixie-securityFixed · Fixed:
2.0.47-1usn · php-phpseclib · debian · 13
- [php-phpseclib3]Fixed
Details (4)
3.0.43-2+deb13u3· all · trixieFixed · Fixed:
3.0.36-1usn · php-phpseclib3 · debian · 13
3.0.43-2+deb13u3· all · trixieFixed · Fixed:
3.0.36-1usn · php-phpseclib3 · debian · 13
3.0.43-2+deb13u1· all · trixie-securityFixed · Fixed:
3.0.36-1usn · php-phpseclib3 · debian · 13
3.0.43-2+deb13u1· all · trixie-securityFixed · Fixed:
3.0.36-1usn · php-phpseclib3 · debian · 13
- [php-seclib]Fixed
Source package: [phpseclib]
Details (4)
1.0.23-6+deb13u3· all · trixieFixed · Fixed:
1.0.23-1usn · phpseclib · debian · 13
1.0.23-6+deb13u3· all · trixieFixed · Fixed:
1.0.23-1usn · phpseclib · debian · 13
1.0.23-6+deb13u1· all · trixie-securityFixed · Fixed:
1.0.23-1usn · phpseclib · debian · 13
1.0.23-6+deb13u1· all · trixie-securityFixed · Fixed:
1.0.23-1usn · phpseclib · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2024-27354]
- [https://osv.dev/vulnerability/DLA-3749-1]
- [https://osv.dev/vulnerability/DLA-3750-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2024-27354]
- [https://security-tracker.debian.org/tracker/CVE-2024-27354]
- [https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-27354.json]
- [https://ubuntu.com/security/notices/USN-8769-1]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [Ubuntu Security Notices (USN)]