CVE-2017-6542

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Summary

CVECVE-2017-6542
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-03-27 17:59:00 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionThe ssh_agent_channel_data function in PuTTY before 0.68 allows remote attackers to have unspecified impact via a large length value in an agent protocol message and leveraging the ability to connect to the Unix-domain socket representing the forwarded agent connection, which trigger a buffer overflow.

Risk And Classification

Primary CVSS: v3.0 9.8 CRITICAL from [email protected]

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-119 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary9.8CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
2.0[email protected]Primary7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:L/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Opensuse Leap 42.2 All All All
Operating System Opensuse Project Leap 42.1 All All All
Application Putty Putty All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
openSUSE-SU-2017:0741-1: moderate: Security update for putty af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Third Party Advisory
FileZilla: Buffer overflow (GLSA 201706-09) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
PuTTY Integer Overflow in ssh_agent_channel_data Lets Local Users Gain Elevated Privileges or Deny Service - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
PuTTY: Buffer overflow (GLSA 201703-03) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org Third Party Advisory, VDB Entry
git.tartarus.org Git - simon/putty.git/commitdiff af854a3a-2127-422b-91ae-364da2661108 git.tartarus.org
PuTTY < 0.68 - 'ssh_agent_channel_data' Integer Overflow Heap Corruption - Linux dos Exploit af854a3a-2127-422b-91ae-364da2661108 www.exploit-db.com
PuTTY 'ssh_agent_channel_data()' Function Integer Overflow Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
PuTTY vulnerability vuln-agent-fwd-overflow af854a3a-2127-422b-91ae-364da2661108 www.chiark.greenend.org.uk Patch, Vendor Advisory
git.tartarus.org Git - simon/putty.git/commitdiff MITRE git.tartarus.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 710495 Gentoo Linux PuTTY Buffer overflow Vulnerability (GLSA 201703-03)
  • 710542 Gentoo Linux FileZilla Buffer overflow Vulnerability (GLSA 201706-09)
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