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Debian: Security Advisory for haproxy (DSA-4649-1)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

6.5

CVSSv2 Vector

CVSSv2 Vector

AV:N/AC:L/Au:S/C:P/I:P/A:P

Solution Type

Solution Type

Vendor Patch

Created

Created

4 years ago

Modified

Modified

4 years ago

Summary

The remote host is missing an update for the 'haproxy' package(s) announced via the DSA-4649-1 advisory.

Insight

Insight

Felix Wilhelm of Google Project Zero discovered that HAProxy, a TCP/HTTP reverse proxy, did not properly handle HTTP/2 headers. This would allow an attacker to write arbitrary bytes around a certain location on the heap, resulting in denial-of-service or potential arbitrary code execution.

Affected Software

Affected Software

'haproxy' package(s) on Debian Linux.

Detection Method

Detection Method

Checks if a vulnerable package version is present on the target host.

Solution

Solution

For the stable distribution (buster), this problem has been fixed in version 1.8.19-1+deb10u2. We recommend that you upgrade your haproxy packages.

Common Vulnerabilities and Exposures (CVE)