CVE-2015-5309

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Summary

CVECVE-2015-5309
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2015-12-07 20:59:08 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionInteger overflow in the terminal emulator in PuTTY before 0.66 allows remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code via an ECH (erase characters) escape sequence with a large parameter value, which triggers a buffer underflow.

Risk And Classification

Primary CVSS: v2.0 4.3 from [email protected]

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

Problem Types: CWE-189 | n/a

CVSS v2.0 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Opensuse Leap 42.1 All All All
Operating System Opensuse Opensuse 13.1 All All All
Operating System Opensuse Opensuse 13.2 All All All
Application Simon Tatham Putty All All All All

Vendor Declared Affected Products

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

References

ReferenceSourceLinkTags
[SECURITY] Fedora 23 Update: putty-0.66-1.fc23 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
PuTTY ECH Integer Overflow Lets Remote Users Execute Arbitrary Code on the Target User's System - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Debian -- Security Information -- DSA-3409-1 putty af854a3a-2127-422b-91ae-364da2661108 www.debian.org
openSUSE-SU-2015:2023-1: moderate: Security update for putty af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
PuTTY: Multiple vulnerabilities (GLSA 201606-01) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
PuTTY vulnerability vuln-ech-overflow af854a3a-2127-422b-91ae-364da2661108 www.chiark.greenend.org.uk Vendor Advisory
[SECURITY] Fedora 22 Update: putty-0.66-1.fc22 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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