Summary
Harry Sintonen and Tomas Hoger discovered that curl incorrectly handled
TELNET connections when the -t option was used on the command line.
Uninitialized data possibly containing sensitive information could be sent
to the remote server, contrary to expectations. This issue was only fixed
in Ubuntu 14.04 ESM. (CVE-2021-22898, CVE-2021-22925)
It was discovered that curl incorrectly handled denials when using HTTP
proxies. A remote attacker could use this issue to cause curl to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2022-43552)
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro 14.04 LTS Pro:14.04:LTS | curl | 7.35.0-1ubuntu2.20+esm14 |
| Ubuntu · Pro 16.04 LTS Pro:16.04:LTS | curl | 7.47.0-1ubuntu2.19+esm7 |
Vulnerabilities 3
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Medium 5.9
A use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it support…
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Medium 5.3
curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used…
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Low 3.1
curl 7.7 through 7.76.1 suffers from an information disclosure when the `-t` command line option, known as `CURLOPT_TEL…