CVE-2022-27191 — Use of a Broken or Risky Cryptographic Algorithm in X Crypto

CWE-327 — Use of a Broken or Risky Cryptographic Algorithm8 documents6 sources
Severity
7.5HIGHNVD
EPSS
0.1%
top 74.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Golang.org X CryptoGolang SSHFedoraproject Extra Packages FOR Enterprise Linux+2 more
Timeline
PublishedMar 18
Latest updateApr 25

Description

The golang.org/x/crypto/ssh package before 0.0.0-20220314234659-1baeb1ce4c0b for Go allows an attacker to crash a server in certain circumstances involving AddHostKey.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages4 packages

▶Gogolang.org/x_crypto< 0.0.0-20220314234659-1baeb1ce4c0b
▶NVDgolang/ssh< 0.0.0-20220314234659-1baeb1ce4c0b

Also affects: Fedora 34, 35, 36

🔴Vulnerability Details

5
OSV
Denial of service via crafted Signer in golang.org/x/crypto/ssh↗2022-04-25
▶
OSV
golang.org/x/crypto/ssh Denial of service via crafted Signer↗2022-03-19
▶
GHSA
golang.org/x/crypto/ssh Denial of service via crafted Signer↗2022-03-19
▶
OSV
CVE-2022-27191: The golang↗2022-03-18
▶
CVEList
CVE-2022-27191: The golang↗2022-03-18
▶

📋Vendor Advisories

2
Red Hat
golang: crash in a golang.org/x/crypto/ssh server↗2022-03-15
▶
Debian
CVE-2022-27191: golang-go.crypto - The golang.org/x/crypto/ssh package before 0.0.0-20220314234659-1baeb1ce4c0b for...↗2022
▶
CVE-2022-27191 — Golang.org X Crypto vulnerability | cvebase