Vulnerability Monitor

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CVE-2015-5309


Integer 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.


Published

2015-12-07T20:59:08.060

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-189

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System opensuse leap 42.1 Yes
Operating System opensuse opensuse 13.1 Yes
Operating System opensuse opensuse 13.2 Yes
Application simon_tatham putty ≤ 0.65 Yes

References