National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

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There are 12 matching records.
Vuln ID Summary CVSS Severity
CVE-2019-9898

Potential recycling of random numbers used in cryptography exists within PuTTY before 0.71.

Published: March 21, 2019; 12:01:17 PM -04:00
V3: 9.8 CRITICAL
V2: 7.5 HIGH
CVE-2019-9897

Multiple denial-of-service attacks that can be triggered by writing to the terminal exist in PuTTY versions before 0.71.

Published: March 21, 2019; 12:01:17 PM -04:00
V3: 7.5 HIGH
V2: 5.0 MEDIUM
CVE-2019-9896

In PuTTY versions before 0.71 on Windows, local attackers could hijack the application by putting a malicious help file in the same directory as the executable.

Published: March 21, 2019; 12:01:17 PM -04:00
V3: 7.8 HIGH
V2: 4.6 MEDIUM
CVE-2019-9895

In PuTTY versions before 0.71 on Unix, a remotely triggerable buffer overflow exists in any kind of server-to-client forwarding.

Published: March 21, 2019; 12:01:17 PM -04:00
V3: 9.8 CRITICAL
V2: 7.5 HIGH
CVE-2019-9894

A remotely triggerable memory overwrite in RSA key exchange in PuTTY before 0.71 can occur before host key verification.

Published: March 21, 2019; 12:01:17 PM -04:00
V3: 7.5 HIGH
V2: 6.4 MEDIUM
CVE-2017-6542

The 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.

Published: March 27, 2017; 01:59:00 PM -04:00
V3: 9.8 CRITICAL
V2: 7.5 HIGH
CVE-2015-2157

The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63 do not properly wipe SSH-2 private keys from memory, which allows local users to obtain sensitive information by reading the memory.

Published: March 27, 2015; 10:59:05 AM -04:00
V2: 2.1 LOW
CVE-2013-4852

Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH servers to cause a denial of service (crash) and possibly execute arbitrary code in certain applications that use PuTTY via a negative size value in an RSA key signature during the SSH handshake, which triggers a heap-based buffer overflow.

Published: August 19, 2013; 07:55:09 PM -04:00
V2: 6.8 MEDIUM
CVE-2013-4208

The rsa_verify function in PuTTY before 0.63 (1) does not clear sensitive process memory after use and (2) does not free certain structures containing sensitive process memory, which might allow local users to discover private RSA and DSA keys.

Published: August 19, 2013; 07:55:08 PM -04:00
V2: 2.1 LOW
CVE-2013-4207

Buffer overflow in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) via an invalid DSA signature that is not properly handled during computation of a modular inverse and triggers the overflow during a division by zero by the bignum functionality, a different vulnerability than CVE-2013-4206.

Published: August 19, 2013; 07:55:08 PM -04:00
V2: 4.3 MEDIUM
CVE-2013-4206

Heap-based buffer underflow in the modmul function in sshbn.c in PuTTY before 0.63 allows remote SSH servers to cause a denial of service (crash) and possibly trigger memory corruption or code execution via a crafted DSA signature, which is not properly handled when performing certain bit-shifting operations during modular multiplication.

Published: August 19, 2013; 07:55:08 PM -04:00
V2: 6.8 MEDIUM
CVE-2006-7162

PuTTY 0.59 and earlier uses weak file permissions for (1) ppk files containing private keys generated by puttygen and (2) session logs created by putty, which allows local users to gain sensitive information by reading these files.

Published: March 07, 2007; 04:19:00 PM -05:00
V2: 1.9 LOW