CVE-2016-9952 — Improper Certificate Validation in Curl

CWE-295 — Improper Certificate Validation5 documents5 sources
Severity
8.1HIGHNVD
EPSS
1.0%
top 22.92%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Haxx Curl
Timeline
PublishedMar 12
Latest updateMay 14

Description

The verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through 7.51.0, when built for Windows CE using the schannel TLS backend, makes it easier for remote attackers to conduct man-in-the-middle attacks via a crafted wildcard SAN in a server certificate, as demonstrated by "*.com."

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 2.2 | Impact: 5.9

Affected Packages2 packages

▶Alpinehaxx/curl< 7.52.1-r0+1
▶NVDhaxx/curl7.30.0 — 7.51.0

🔴Vulnerability Details

3
GHSA
GHSA-j357-mfhx-p456: The verify_certificate function in lib/vtls/schannel↗2022-05-14
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CVEList
CVE-2016-9952: The verify_certificate function in lib/vtls/schannel↗2018-03-12
▶
OSV
CVE-2016-9952: The verify_certificate function in lib/vtls/schannel↗2018-03-12
▶

📋Vendor Advisories

1
Debian
CVE-2016-9952: curl - The verify_certificate function in lib/vtls/schannel.c in libcurl 7.30.0 through...↗2016
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CVE-2016-9952 — Improper Certificate Validation in Curl | cvebase