CVE catalog
CVE-2021-22924
curl: CVE-2021-22924
- Severity
- Medium · CVSS 5.4
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 6.27% · Oct 25, 2026
libcurl keeps previously used connections in a connection pool for subsequenttransfers to reuse, if one of them matches the setup.Due to errors in the logic, the config matching function did not take 'issuercert' into account and it compared the involved paths *case insensitively*,which could lead to libcurl reusing wrong connections.File paths are, or can be, case sensitive on many systems but not all, and caneven vary depending on used file systems.The comparison also didn't include the 'issuer cert' which a transfer can setto qualify how to verify the server certificate.
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 | curl | sid | 8.23.0-1 | fixed |
| Debian | curl | forky | 8.22.0-1 | fixed |
| Debian | curl | trixie | 8.14.1-2+deb13u5 | fixed |
| Debian | curl | trixie-security | 8.14.1-2+deb13u7 | fixed |
| Debian | curl | bookworm | 7.88.1-10+deb12u15 | fixed |
| Debian | curl | bookworm-security | 7.88.1-10+deb12u5 | fixed |
| Cpe | libcurl | Not reported | 7.77.0 | fixed |
| Cpe | fedora | Not reported | Not reported | unknown |
| Cpe | debian_linux | Not reported | Not reported | unknown |
| Cpe | cloud_backup | Not reported | Not reported | unknown |
| Cpe | clustered_data_ontap | Not reported | Not reported | unknown |
| Cpe | solidfire_\&_hci_management_node | Not reported | Not reported | unknown |
| Cpe | solidfire_baseboard_management_controller_firmware | Not reported | Not reported | unknown |
| Cpe | mysql_server | Not reported | Not reported | unknown |
| Cpe | peoplesoft_enterprise_peopletools | Not reported | Not reported | unknown |
| Cpe | sinec_infrastructure_network_services | Not reported | 1.0.1.1 | fixed |
| Cpe | sinema_remote_connect_server | Not reported | 3.1 | fixed |
| Cpe | logo\!_cmr2040_firmware | Not reported | Not reported | unknown |
| Cpe | logo\!_cmr2020_firmware | Not reported | Not reported | unknown |
| Cpe | ruggedcomrm_1224_lte_firmware | Not reported | 7.1 | fixed |
| Cpe | scalance_m804pb_firmware | Not reported | 7.1 | fixed |
| Alpine | curl | 3.12 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.13 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.14 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.15 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.16 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.17 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.18 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.19 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.20 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.21 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.22 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.23 | 7.78.0-r0 | fixed |
| Alpine | curl | 3.24 | 7.78.0-r0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | curl | source | sid | 7.79.1-1 | not yet assigned | Not reported | [991492] |
| Debian | curl | source | forky | 7.79.1-1 | not yet assigned | Not reported | [991492] |
| Debian | curl | source | trixie | 7.79.1-1 | not yet assigned | Not reported | [991492] |
| Debian | curl | source | bookworm | 7.79.1-1 | not yet assigned | Not reported | [991492] |
| Cpe | libcurl | cpe | Not reported | 7.77.0 | Not reported | NVD-CVE-2021-22924 | Not reported |
| Cpe | sinec_infrastructure_network_services | cpe | Not reported | 1.0.1.1 | Not reported | NVD-CVE-2021-22924 | Not reported |
| Cpe | sinema_remote_connect_server | cpe | Not reported | 3.1 | Not reported | NVD-CVE-2021-22924 | Not reported |
| Cpe | ruggedcomrm_1224_lte_firmware | cpe | Not reported | 7.1 | Not reported | NVD-CVE-2021-22924 | Not reported |
| Cpe | scalance_m804pb_firmware | cpe | Not reported | 7.1 | Not reported | NVD-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.12 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.13 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.14 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.15 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.16 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.17 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.18 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.19 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.20 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.21 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.22 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.23 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
| Alpine | curl | apk | 3.24 | 7.78.0-r0 | Not reported | ALPINE-CVE-2021-22924 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [curl]Unknown
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
- [libcurl3-gnutls]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
- [libcurl3-nss]Unknown
Source package: [curl]
Details (4)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
- [libcurl4]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
- [libcurl4-doc]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· all · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u15· all · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· all · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· all · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· all · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· all · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
- [libcurl4-gnutls-dev]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
- [libcurl4-nss-dev]Unknown
Source package: [curl]
Details (4)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
- [libcurl4-openssl-dev]Unknown
Source package: [curl]
Details (6)
7.88.1-10+deb12u15· amd64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u15· arm64 · bookwormFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· amd64 · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
8.14.1-2+deb13u2~bpo13+1· arm64 · bookworm-backportsFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· amd64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
7.88.1-10+deb12u5· arm64 · bookworm-securityFixed · Fixed:
7.79.1-1dsa · curl · debian · bookworm
Observed:
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-732250.json]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2021_3582.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2021-22924]
- [https://osv.dev/vulnerability/ALPINE-CVE-2021-22924]
- [https://security-tracker.debian.org/tracker/CVE-2021-22924]
- [https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-22924.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-1350.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]