CVE catalog
CVE-2021-28963
shibboleth-sp: CVE-2021-28963
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 1.31% · Oct 25, 2026
Shibboleth Service Provider before 3.2.1 allows content injection because template generation uses attacker-controlled parameters.
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 | shibboleth-sp | sid | 3.5.2+dfsg-1 | fixed |
| Debian | shibboleth-sp | forky | 3.5.2+dfsg-1 | fixed |
| Debian | shibboleth-sp | trixie | 3.5.0+dfsg-2+deb13u1 | fixed |
| Debian | shibboleth-sp | trixie-security | 3.5.0+dfsg-2+deb13u1 | fixed |
| Debian | shibboleth-sp | bookworm | 3.4.1+dfsg-2+deb12u1 | fixed |
| Debian | shibboleth-sp | bookworm-security | 3.4.1+dfsg-2+deb12u1 | fixed |
| Ubuntu | shibboleth-sp2 | 16.04 | 2.5.3+dfsg-2.1build1 | vulnerable |
| Ubuntu | shibboleth-sp2 | 18.04 | 2.6.0+dfsg1-4 | vulnerable |
| Ubuntu | shibboleth-sp2 | 18.04 | 2.6.0+dfsg1-5 | vulnerable |
| Ubuntu | shibboleth-sp2 | 18.04 | 2.6.0+dfsg1-5build1 | vulnerable |
| Ubuntu | shibboleth-sp2 | 18.04 | 2.6.1+dfsg1-1 | vulnerable |
| Ubuntu | shibboleth-sp2 | 18.04 | 2.6.1+dfsg1-2 | vulnerable |
| Ubuntu | shibboleth-sp | 20.04 | 3.0.4+dfsg1-1 | vulnerable |
| Ubuntu | shibboleth-sp | 20.04 | 3.0.4+dfsg1-1build1 | vulnerable |
| Ubuntu | shibboleth-sp | 20.04 | 3.0.4+dfsg1-1ubuntu0.1 | fixed |
| Ubuntu | shibboleth-sp | pro | 3.2.2+dfsg1-1ubuntu1 | vulnerable |
| Ubuntu | shibboleth-sp | pro | 3.3.0+dfsg1-1 | vulnerable |
| Ubuntu | shibboleth-sp | pro | 3.3.0+dfsg1-1ubuntu0.1~esm1 | vulnerable |
| Ubuntu | shibboleth-sp | 20.04 | 3.0.4+dfsg1-1 | vulnerable |
| Ubuntu | shibboleth-sp | 20.04 | 3.0.4+dfsg1-1build1 | vulnerable |
| Ubuntu | shibboleth-sp | 20.04 | 3.0.4+dfsg1-1ubuntu0.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | shibboleth-sp | source | sid | 3.2.1+dfsg1-1 | not yet assigned | Not reported | [985405] |
| Debian | shibboleth-sp | source | forky | 3.2.1+dfsg1-1 | not yet assigned | Not reported | [985405] |
| Debian | shibboleth-sp | source | trixie | 3.2.1+dfsg1-1 | not yet assigned | Not reported | [985405] |
| Debian | shibboleth-sp | source | bookworm | 3.2.1+dfsg1-1 | not yet assigned | Not reported | [985405] |
| Ubuntu | shibboleth-sp | deb | 20.04 | 3.0.4+dfsg1-1ubuntu0.1 | Not reported | UBUNTU-CVE-2021-28963 | Not reported |
| Ubuntu | shibboleth-sp | deb | 20.04 | 3.0.4+dfsg1-1ubuntu0.1 | Not reported | USN-4925-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [libapache2-mod-shib]Unknown
Source package: [shibboleth-sp]
Details (4)
3.4.1+dfsg-2+deb12u1· amd64 · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· arm64 · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
- [libshibsp11]Unknown
Source package: [shibboleth-sp]
Details (4)
3.4.1+dfsg-2+deb12u1· amd64 · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· arm64 · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
- [libshibsp-dev]Unknown
Source package: [shibboleth-sp]
Details (4)
3.4.1+dfsg-2+deb12u1· amd64 · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· arm64 · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
- [libshibsp-doc]Unknown
Source package: [shibboleth-sp]
Details (4)
3.4.1+dfsg-2+deb12u1· all · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· all · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· all · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· all · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
- [libshibsp-plugins]Unknown
Source package: [shibboleth-sp]
Details (4)
3.4.1+dfsg-2+deb12u1· amd64 · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· arm64 · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
- [shibboleth-sp-common]Unknown
Source package: [shibboleth-sp]
Details (4)
3.4.1+dfsg-2+deb12u1· all · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· all · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· all · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· all · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
- [shibboleth-sp-utils]Unknown
Source package: [shibboleth-sp]
Details (4)
3.4.1+dfsg-2+deb12u1· amd64 · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· arm64 · bookwormFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· amd64 · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
3.4.1+dfsg-2+deb12u1· arm64 · bookworm-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · bookworm; dsa · shibboleth-sp · debian · 12
[Debian 13 (Trixie)]
- [libapache2-mod-shib]Unknown
Source package: [shibboleth-sp]
Details (4)
3.5.0+dfsg-2+deb13u1· amd64 · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· arm64 · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· amd64 · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· arm64 · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
- [libshibsp12]Unknown
Source package: [shibboleth-sp]
Details (4)
3.5.0+dfsg-2+deb13u1· amd64 · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· arm64 · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· amd64 · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· arm64 · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
- [libshibsp-dev]Unknown
Source package: [shibboleth-sp]
Details (4)
3.5.0+dfsg-2+deb13u1· amd64 · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· arm64 · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· amd64 · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· arm64 · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
- [libshibsp-doc]Unknown
Source package: [shibboleth-sp]
Details (4)
3.5.0+dfsg-2+deb13u1· all · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· all · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· all · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· all · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
- [libshibsp-plugins]Unknown
Source package: [shibboleth-sp]
Details (4)
3.5.0+dfsg-2+deb13u1· amd64 · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· arm64 · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· amd64 · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· arm64 · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
- [shibboleth-sp-common]Unknown
Source package: [shibboleth-sp]
Details (4)
3.5.0+dfsg-2+deb13u1· all · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· all · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· all · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· all · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
- [shibboleth-sp-utils]Unknown
Source package: [shibboleth-sp]
Details (4)
3.5.0+dfsg-2+deb13u1· amd64 · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· arm64 · trixieFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· amd64 · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
3.5.0+dfsg-2+deb13u1· arm64 · trixie-securityFixed · Fixed:
3.2.1+dfsg1-1dsa · shibboleth-sp · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2021-28963]
- [https://osv.dev/vulnerability/DLA-2599-1]
- [https://osv.dev/vulnerability/DSA-4872-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2021-28963]
- [https://osv.dev/vulnerability/USN-4925-1]
- [https://security-tracker.debian.org/tracker/CVE-2021-28963]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]