Unrated
CVE-2021-4209
A NULL pointer dereference flaw was found in GnuTLS. As Nettle's hash update functions internally call memcpy, providing zero-length input may cause undefined behavior. This flaw leads to a denial of service after authentication in rare circumstances.
Announced Source revision 1
Original source ↗CVE-2021-4209
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-2021-4209
GnuTLS
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": "GnuTLS",
"versions": [
{
"status": "affected",
"version": "Fixed in gnutls v3.7.3"
}
]
}
]- Related CVEs
- CVE-2021-4209
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #21657 · Revision 1
- Added to Heist Feed
- Publisher date