CVE-2023-25725 Affecting haproxy package, versions <1.8.19-1+deb10u4


Severity

Recommended
0.0
critical
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.31% (71st percentile)

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  • Snyk ID SNYK-DEBIAN10-HAPROXY-3319772
  • published 15 Feb 2023
  • disclosed 14 Feb 2023

How to fix?

Upgrade Debian:10 haproxy to version 1.8.19-1+deb10u4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream haproxy package and not the haproxy package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

HAProxy before 2.7.3 may allow a bypass of access control because HTTP/1 headers are inadvertently lost in some situations, aka "request smuggling." The HTTP header parsers in HAProxy may accept empty header field names, which could be used to truncate the list of HTTP headers and thus make some headers disappear after being parsed and processed for HTTP/1.0 and HTTP/1.1. For HTTP/2 and HTTP/3, the impact is limited because the headers disappear before being parsed and processed, as if they had not been sent by the client. The fixed versions are 2.7.3, 2.6.9, 2.5.12, 2.4.22, 2.2.29, and 2.0.31.

CVSS Scores

version 3.1
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NVD

9.1 critical
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    High
  • Availability (A)
    High
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SUSE

9.3 critical
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Red Hat

8.2 high