19 results · Feed
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Low 3.7
PuTTY 0.71 before 0.84 has an assertion failure in ECDSA signature verification.
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Low 3.1
PuTTY 0.77 before 0.84 uses a copy of the PuTTY icon as a trust indication for TELNET data but the trust status is not …
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Low 3.7
PuTTY 0.72 before 0.84 has a double free in RSA KEX.
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Low 3.7
PuTTY Ed25519 Signature ecc-ssh.c eddsa_verify signature verification
A vulnerability was detected in PuTTY 0.83. Affected is the function eddsa_verify of the file crypto/ecc-ssh.c of the component Ed25519 Signature Handler. The manipulation results in improper verification of cryptographic signature. The attack may be performe…
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Medium 5.9CVE-2024-31497 Public exploit
In PuTTY 0.68 through 0.80 before 0.81, biased ECDSA nonce generation allows an attacker to recover a user's NIST P-521…
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Medium 5.9
Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server…
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High 8.1
PuTTY through 0.75 proceeds with establishing an SSH session even if it has never sent a substantive authentication res…
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High 7.5
PuTTY before 0.75 on Windows allows remote servers to cause a denial of service (Windows GUI hang) by telling the PuTTY…
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Unscored —
PuTTY 0.68 through 0.73 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This…
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Unscored —
PuTTY before 0.73 on Windows improperly opens port-forwarding listening sockets, which allows attackers to listen on th…
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Unscored —
PuTTY before 0.73 mishandles the "bracketed paste mode" protection mechanism, which may allow a session to be affected …
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Unscored —
PuTTY before 0.73 might allow remote SSH-1 servers to cause a denial of service by accessing freed memory locations via…
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Unscored —
Potential recycling of random numbers used in cryptography exists within PuTTY before 0.71.
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Unscored —
Multiple denial-of-service attacks that can be triggered by writing to the terminal exist in PuTTY versions before 0.71.
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Unscored —
In PuTTY versions before 0.71 on Unix, a remotely triggerable buffer overflow exists in any kind of server-to-client fo…
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Unscored —
A remotely triggerable memory overwrite in RSA key exchange in PuTTY before 0.71 can occur before host key verification.
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Unscored —
The ssh_agent_channel_data function in PuTTY before 0.68 allows remote attackers to have unspecified impact via a large…
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Unscored —
The (1) ssh2_load_userkey and (2) ssh2_save_userkey functions in PuTTY 0.51 through 0.63 do not properly wipe SSH-2 pri…
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Unscored —
Integer overflow in PuTTY 0.62 and earlier, WinSCP before 5.1.6, and other products that use PuTTY allows remote SSH se…