UBUNTU-CVE-2020-15049

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    UBUNTU-CVE-2020-15049

    Published: 30 Jun 2020Last Modified: 4 Feb 2026
    Upstream:
    CVE-2020-15049

    Summary:

    Details: An issue was discovered in http/ContentLengthInterpreter.cc in Squid before 4.12 and 5.x before 5.0.3. A Request Smuggling and Poisoning attack can succeed against the HTTP cache. The client sends an HTTP request with a Content-Length header containing "+\ "-" or an uncommon shell whitespace character prefix to the length field-value.

    References: https://ubuntu.com/security/CVE-2020-15049, https://github.com/squid-cache/squid/security/advisories/GHSA-qf3v-rc95-96j5, https://ubuntu.com/security/notices/USN-4551-1, https://ubuntu.com/security/notices/USN-4895-1, https://www.cve.org/CVERecord?id=CVE-2020-15049

    Affected packages

    Package

    Name: squid3

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.5.12-1ubuntu7.15

    Affected versions

    3.3.8-1ubuntu16
    3.3.8-1ubuntu17

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2020-15049 | CVE-DB