CVE-2004-1440

published 2004-12-31

CVE-2004-1440: Multiple heap-based buffer overflows in the modpow function in PuTTY before 0.55 allow (1) remote attackers to execute arbitrary code via an SSH2 packet with a…

Priority P4 32 high 7.5 CVSS 2.0

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

Multiple heap-based buffer overflows in the modpow function in PuTTY before 0.55 allow (1) remote attackers to execute arbitrary code via an SSH2 packet with a base argument that is larger than the mod argument, which causes the modpow function to write memory before the beginning of its buffer, and (2) remote malicious servers to cause a denial of service (client crash) and possibly execute arbitrary code via a large bignum during authentication.

Affected

13 ranges

Vendor	Product	Version range	Fixed in
debian	putty	< putty 0.56-1 (bookworm)	putty 0.56-1 (bookworm)
putty	putty	—	—
putty	putty	—	—
putty	putty	—	—
putty	putty	—	—
putty	putty	—	—
putty	putty	—	—
putty	putty	—	—
putty	putty	—	—
putty	putty	>= 0 < 0.56-1	0.56-1
putty	putty	>= 0 < 0.56-1	0.56-1
putty	putty	>= 0 < 0.56-1	0.56-1
putty	putty	>= 0 < 0.56-1	0.56-1

CVSS provenance

nvd v2.0 7.5 HIGH AV:N/AC:L/Au:N/C:P/I:P/A:P

osv 7.5 HIGH

vendor_debian 7.5 HIGH

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