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CVE-2010-1866

Publication date 7 May 2010

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
php5 10.04 LTS lucid
Fixed 5.3.2-1ubuntu4.5
9.10 karmic
Not affected
9.04 jaunty
Not affected
8.04 LTS hardy
Not affected
6.06 LTS dapper
Not affected

Notes

mdeslaur

5.3 only This is MOPS-2010-003

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
php5

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H