Information disclosure in Apple Macos
CVE-2021-22925
curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application.
Vulnerability class: Information Disclosure
EPSS: 0.049 (91.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Apple Macos — versions 11.0, 11.0.1, 11.1
- Apple Mac_os_x — versions 10.15.7
- Haxx Curl
- Netapp Cloud_backup
- Netapp Clustered_data_ontap
- Netapp H300e
- Netapp H300e_firmware
- Netapp H300s
- Netapp H300s_firmware
- Netapp H410s
Weakness classification (CWE)
Public proof-of-concept exploits
References
- support@hackerone.com (Exploit, Patch, Third Party Advisory, Issue Tracking)
- support@hackerone.com (vendor-advisory, Mailing List, Third Party Advisory)
- support@hackerone.com (mailing-list, Mailing List, Third Party Advisory)
- support@hackerone.com (mailing-list, Mailing List, Third Party Advisory)
- support@hackerone.com (Patch, Third Party Advisory)
- support@hackerone.com (Third Party Advisory)
- support@hackerone.com (Third Party Advisory)
- support@hackerone.com (Third Party Advisory)
- support@hackerone.com (Patch, Third Party Advisory)
- support@hackerone.com (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-22925?
- CVE-2021-22925 is a medium-severity vulnerability in Apple Macos, classified under Information Disclosure. CVSS score: 5.3/10. Published 2021-08-05.
- How severe is CVE-2021-22925?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2021-22925 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.