VDB
ALPINE-CVE-2021-22898
ALPINE-CVE-2021-22898
PUBLISHED
CVSS 3.0999999046325684 LOW
curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TELNETOPTIONS` in libcurl, is used to send variable=content pairs to TELNET servers. Due to a flaw in the option parser for sending NEW_ENV variables, libcurl could be made to pass on uninitialized data from a stack based buffer to the server, resulting in potentially revealing sensitive internal information to the server using a clear-text network protocol.
Risk Scores
CVSS 3.1
3.0999999046325684
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Alpine:v3.22 | curl | 7.70.0-r1, 7.27.0-r0, 7.34.0-r1 |
| Alpine:v3.13 | curl | 7.19.5-r0, 7.7, 7.7 |
| Alpine:v3.20 | curl | 7.64.0-r0, 7.65.1-r0, 7.65.3-r0 |
| Alpine:v3.11 | curl | 7.27.0-r0, 7.28.1-r0, 7.29.0-r0 |
| Alpine:v3.18 | curl | 7.56.1-r1, 7.56.1-r0, 7.56.0-r0 |
| Alpine:v3.19 | curl | 7.54.1-r0, 7.55.0-r0, 7.55.1-r0 |
| Alpine:v3.21 | curl | 7.53.1-r1, 7.19.5-r0, 0 |
| Alpine:v3.23 | curl | 7.21.0-r0, 0, 7.19.2-r0 |
| Alpine:v3.15 | curl | 7.7, 7.71.0-r1, 7.71.1-r0 |
| Alpine:v3.12 | curl | 7.19.2-r1, 7.19.4-r0, 7.19.5-r0 |
| Alpine:v3.17 | curl | 7.52.1-r1, 7.53.0-r0, 7.53.1-r0 |
| Alpine:v3.24 | curl | 0, 7.7, 7.7 |
| Alpine:v3.10 | curl | 7.7, 7.19.2-r0, 7.19.2-r1 |
| Alpine:v3.14 | curl | 7.56.0-r0, 7.7, 7.7 |
| Alpine:v3.16 | curl | 7.26.0-r0, 7.40.0-r0, 7.49.1-r0 |
Timeline
- Jun 11, 2021 CVE Published
- Jul 8, 2026 CVE Updated
- Aug 8, 2026 Distribution Patch