CVEvulnerability

CVE-2010-1866

9.8 CRITICAL Published 2010-05-07 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2010-05-07
Last modified
2026-06-16
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-190

Description

The dechunk filter in PHP 5.3 through 5.3.2, when decoding an HTTP chunked encoding stream, allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size, which bypasses a signed comparison, related to an integer overflow in the chunk size decoder.

Affected configurations

• php php (>= 5.3.0 <= 5.3.2) • opensuse opensuse 11.1 • opensuse opensuse 11.2 • opensuse opensuse 11.3 • suse linux enterprise 10.0 • suse linux enterprise 11.0

Related

Weakness · CWE (1)

  • CWE-190 Integer Overflow or Wraparound weakness

Referenced by CWE · observed example (3)

  • CWE-122 Heap-based Buffer Overflow weakness
  • CWE-190 Integer Overflow or Wraparound weakness
  • CWE-839 Numeric Range Comparison Without Minimum Check weakness

References