vulnwire
7.5high

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 a…

Published 21 y ago · modified 4 mo ago · JSON

CVSS
7.5
v2.0 · NVD
CISA KEV
No
not known exploited
EPSS
4.1%
percentile 91%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

4.11% probability of exploitation in the next 30 days, higher than 91% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

References

  • gentoo.org /security/en/glsa/glsa-200408-04.xml · vendor-advisory, x_refsource_GENTOO, x_transferred
  • chiark.greenend.org.uk /~sgtatham/putty/changes.html · x_refsource_CONFIRM, x_transferred
  • securityfocus.com /bid/10850 · vdb-entry, x_refsource_BID, x_transferred
  • secunia.com /advisories/12212/ · third-party-advisory, x_refsource_SECUNIA, x_transferred
  • chiark.greenend.org.uk /~sgtatham/putty/wishlist/vuln-modpow.html · x_refsource_CONFIRM, x_transferred
  • exchange.xforce.ibmcloud.com /vulnerabilities/16885 · vdb-entry, x_refsource_XF, x_transferred
  • marc.info /?l=bugtraq&m=109167869528138&w=2 · mailing-list, x_refsource_BUGTRAQ, x_transferred

Sources

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