Incorrect caching of responses to requests including an Authorization header in HAProxy 1.8.0 through 1.8.9 (if cache enabled) allows attackers to achieve information disclosure via an unauthenticated remote request, related to the proto_http.c check_request_for_cacheability function.

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1436 advisory.

    HAProxy is a TCP/HTTP reverse proxy which is particularly suited for high availability environments.

    The following packages have been upgraded to a later upstream version: rh-haproxy18-haproxy (1.8.17).
    (BZ#1660514)

    Security Fix(es):

    * haproxy: Infinite recursion via crafted packet allows stack exhaustion and denial of service     (CVE-2018-20103)

    * haproxy: Information disclosure in check_request_for_cacheability function in proto_http.c     (CVE-2018-11469)

    * haproxy: Out-of-bounds read in dns.c:dns_validate_dns_response() allows for memory disclosure     (CVE-2018-20102)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

    Bug Fix(es):

    * ALPN is not enabled due to old OpenSSL dependancy (BZ#1595865)

    * HAProxy 1.8: Seamless reload does not work with send-/accept-proxy (BZ#1649041)

    Enhancement(s):

    * RFE : Haproxy does not resolve ipv6 resolvable hostnames in the backend section. (BZ#1575585)

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Software Collections 3.3 Release     Notes linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update for haproxy to version 1.8.14 fixes the following issues :

These security issues were fixed :

  - CVE-2018-14645: A flaw was discovered in the HPACK     decoder what caused an out-of-bounds read in     hpack_valid_idx() that resulted in a remote crash and     denial of service (bsc#1108683)

  - CVE-2018-11469: Incorrect caching of responses to     requests including an Authorization header allowed     attackers to achieve information disclosure via an     unauthenticated remote request (bsc#1094846).

These non-security issues were fixed :

  - Require apparmor-abstractions to reduce dependencies     (bsc#1100787)

  - hpack: fix improper sign check on the header index value

  - cli: make sure the 'getsock' command is only called on     connections

  - tools: fix set_net_port() / set_host_port() on IPv4

  - patterns: fix possible double free when reloading a     pattern list

  - server: Crash when setting FQDN via CLI.

  - kqueue: Don't reset the changes number by accident.

  - snapshot: take the proxy's lock while dumping errors

- http/threads: atomically increment the error snapshot ID

  - dns: check and link servers' resolvers right after     config parsing

  - h2: fix risk of memory leak on malformated wrapped     frames

  - session: fix reporting of handshake processing time in     the logs

  - stream: use atomic increments for the request counter

  - thread: implement HA_ATOMIC_XADD()

  - ECC cert should work with TLS < v1.2 and openssl >=     1.1.1

  - dns/server: fix incomatibility between SRV resolution     and server state file

  - hlua: Don't call RESET_SAFE_LJMP if SET_SAFE_LJMP     returns 0.

  - thread: lua: Wrong SSL context initialization.

  - hlua: Make sure we drain the output buffer when done.

  - lua: reset lua transaction between http requests

  - mux_pt: dereference the connection with care in     mux_pt_wake()

  - lua: Bad HTTP client request duration.

  - unix: provide a ->drain() function

  - Fix spelling error in configuration doc

  - cli/threads: protect some server commands against     concurrent operations

  - cli/threads: protect all 'proxy' commands against     concurrent updates

  - lua: socket timeouts are not applied

  - ssl: Use consistent naming for TLS protocols

  - dns: explain set server ... fqdn requires resolver

  - map: fix map_regm with backref

  - ssl: loading dh param from certifile causes     unpredictable error.

  - ssl: fix missing error loading a keytype cert from a     bundle.

  - ssl: empty connections reported as errors.

  - cli: make 'show fd' thread-safe

  - hathreads: implement a more flexible rendez-vous point

  - threads: fix the no-thread case after the change to the     sync point

  - threads: add more consistency between certain variables     in no-thread case

  - threads: fix the double CAS implementation for ARMv7

  - threads: Introduce double-width CAS on x86_64 and arm.

  - lua: possible CLOSE-WAIT state with '\n' headers

For additional changes please refer to the changelog.

This update was imported from the SUSE:SLE-15:Update update project.

Update to 1.8.12

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-3663-1 advisory.

    It was discovered that HAProxy incorrectly handled certain resquests. An attacker could possibly use this     to expose sensitive information.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
194156	RHEL 7 : rh-haproxy18-haproxy (RHSA-2019:1436)	Nessus	Red Hat Local Security Checks	high
123348	openSUSE Security Update : haproxy (openSUSE-2019-824)	Nessus	SuSE Local Security Checks	medium
120628	Fedora 28 : haproxy (2018-941d094624)	Nessus	Fedora Local Security Checks	medium
118344	openSUSE Security Update : haproxy (openSUSE-2018-1229)	Nessus	SuSE Local Security Checks	medium
110262	Ubuntu 18.04 LTS : HAProxy vulnerability (USN-3663-1)	Nessus	Ubuntu Local Security Checks	medium

Detections

Analytics

CVE-2018-11469

medium

Tenable Plugins

high

medium

medium

medium

medium