A buffer overflow in Smart Card authentication code in gpkcsp.dll in Microsoft Windows XP through SP3 and Server 2003 through SP2 allows a r

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• microsoft windows server 2003all versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (microsoft). Independent of NVD's CPE analysis and usually ahead of it.

• Microsoft Microsoft Windows Server 2003 SP1, SP2 Windows XP - SP3

  • Microsoft Windows Server 2003 SP1, SP2 Windows XP - SP3affected

Other highest-scoring records for the same primary product.

• CVE-2011-2005afd.sys in the Ancillary Function Driver in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 does not properly validate user-mode input KEV
  70This week
• CVE-2011-3400Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 do not properly handle OLE objects in memory, which allows remote attackers to execute
  58Plan
• CVE-2010-3970Stack-based buffer overflow in the CreateSizedDIBSECTION function in shimgvw.dll in the Windows Shell graphics processor (aka graphics rende
  57Plan
• CVE-2015-0015Microsoft Windows Server 2003 SP2, Server 2008 SP2 and R2 SP1, and Server 2012 Gold and R2 allow remote attackers to cause a denial of servi
  55Plan
• CVE-2011-1248WINS in Microsoft Windows Server 2003 SP2 and Server 2008 Gold, SP2, R2, and R2 SP1 does not properly handle socket send exceptions, which a
  51Plan
• CVE-2013-0810Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, and Windows Server 2008 SP2 allow remote attackers to execute
  50Plan

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

1char buf[256];2memcpy(buf, pkt->data, pkt->len);

1char buf[256];2if (pkt->len > sizeof(buf)) {3  return -EINVAL;4}5memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.