CVE-2021-22897
curl 7.61.0 through 7.76.1 suffers from exposure of data element to wrong session due to a mistake in the code for CURLOPT_SSL_CIPHER_LIST when libcurl is built to use the Schannel TLS library. The selected cipher set was stored in a single "static" variable in the library, which has the surprising side-effect that if an application sets up multiple concurrent transfers, the last one that sets the ciphers will accidentally control the set used by all transfers. In a worst-case scenario, this weakens transport security significantly.
CVE-2021-22897
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2021-22897
https://github.com/curl/curl
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "n/a",
"product": "https://github.com/curl/curl",
"versions": [
{
"status": "affected",
"version": "7.61.0 through 7.76.1"
}
]
}
]- Related CVEs
- CVE-2021-22897
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #21651 · Revision 1
- Added to Heist Feed
- Publisher date