CVE-2018-15919 — Sensitive Information Exposure in Openssh

CWE-200 — Sensitive Information Exposure8 documents7 sources
Severity
5.3MEDIUMNVD
EPSS
2.1%
top 16.02%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Openbsd Openssh
Timeline
PublishedAug 28
Latest updateMay 14

Description

Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be used by remote attackers to detect existence of users on a target system when GSS2 is in use. NOTE: the discoverer states 'We understand that the OpenSSH developers do not want to treat such a username enumeration (or "oracle") as a vulnerability.'

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages1 packages

▶NVDopenbsd/openssh5.9 — 7.8

Patches

Patch: seclists.org ↗Patch: seclists.org ↗

🔴Vulnerability Details

3
GHSA
GHSA-rj3q-q9f3-gr2v: Remotely observable behaviour in auth-gss2↗2022-05-14
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CVEList
CVE-2018-15919: Remotely observable behaviour in auth-gss2↗2018-08-28
▶
OSV
CVE-2018-15919: Remotely observable behaviour in auth-gss2↗2018-08-28
▶

📋Vendor Advisories

2
Red Hat
openssh: User enumeration via malformed packets in authentication requests↗2018-08-28
▶
Debian
CVE-2018-15919: openssh - Remotely observable behaviour in auth-gss2.c in OpenSSH through 7.8 could be use...↗2018
▶

💬Community

2
Bugzilla
CVE-2018-15919 openssh: User enumeration via malformed packets in authentication requests↗2018-08-28
▶
Bugzilla
CVE-2018-15919 openssh: User enumeration via malformed packets in authentication requests [fedora-all]↗2018-08-28
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CVE-2018-15919 — Sensitive Information Exposure | cvebase