Security update for apache2

Announcement ID:	SUSE-SU-2018:1161-1
Rating:	moderate
References:	bsc#1086774 bsc#1086775 bsc#1086813 bsc#1086814 bsc#1086817 bsc#1086820
Cross-References:	CVE-2017-15710 CVE-2017-15715 CVE-2018-1283 CVE-2018-1301 CVE-2018-1302 CVE-2018-1303 CVE-2018-1312
CVSS scores:	CVE-2017-15710 ( SUSE ): 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVE-2017-15710 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2017-15715 ( SUSE ): 4.3 CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVE-2017-15715 ( NVD ): 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2018-1283 ( SUSE ): 7.5 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2018-1283 ( NVD ): 5.3 CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N CVE-2018-1301 ( SUSE ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2018-1301 ( NVD ): 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2018-1302 ( SUSE ): 5.6 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L CVE-2018-1302 ( NVD ): 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2018-1303 ( SUSE ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2018-1303 ( NVD ): 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2018-1312 ( SUSE ): 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVE-2018-1312 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVE-2018-1312 ( NVD ): 9.8 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products:	SUSE Linux Enterprise Desktop 12 SP3 SUSE Linux Enterprise High Performance Computing 12 SP2 SUSE Linux Enterprise High Performance Computing 12 SP3 SUSE Linux Enterprise Server 12 SP2 SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 SUSE Linux Enterprise Server 12 SP3 SUSE Linux Enterprise Server for SAP Applications 12 SP2 SUSE Linux Enterprise Server for SAP Applications 12 SP3 SUSE Linux Enterprise Software Development Kit 12 SP3 SUSE OpenStack Cloud 7

An update that solves seven vulnerabilities can now be installed.

Description:

This update for apache2 fixes the following issues:

• CVE-2018-1283: when mod_session is configured to forward its session data to CGI applications (SessionEnv on, not the default), a remote user may influence their content by using a \"Session\" header leading to unexpected behavior [bsc#1086814].

• CVE-2018-1301: due to an out of bound access after a size limit being reached by reading the HTTP header, a specially crafted request could lead to remote denial of service. [bsc#1086817]

• CVE-2018-1303: a specially crafted HTTP request header could lead to crash due to an out of bound read while preparing data to be cached in shared memory.[bsc#1086813]

• CVE-2017-15715: a regular expression could match '$' to a newline character in a malicious filename, rather than matching only the end of the filename. leading to corruption of uploaded files.[bsc#1086774]

• CVE-2018-1312: when generating an HTTP Digest authentication challenge, the nonce sent to prevent reply attacks was not correctly generated using a pseudo-random seed. In a cluster of servers using a common Digest authentication configuration, HTTP requests could be replayed across servers by an attacker without detection. [bsc#1086775]

• CVE-2017-15710: mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all. [bsc#1086820]

• CVE-2018-1302: when an HTTP/2 stream was destroyed after being handled, it could have written a NULL pointer potentially to an already freed memory. The memory pools maintained by the server make this vulnerability hard to trigger in usual configurations, the reporter and the team could not reproduce it outside debug builds, so it is classified as low risk. [bsc#1086820]

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• SUSE OpenStack Cloud 7
  zypper in -t patch SUSE-OpenStack-Cloud-7-2018-803=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP2
  zypper in -t patch SUSE-SLE-SAP-12-SP2-2018-803=1
• SUSE Linux Enterprise Software Development Kit 12 SP3
  zypper in -t patch SUSE-SLE-SDK-12-SP3-2018-803=1
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2
  zypper in -t patch SUSE-SLE-SERVER-12-SP2-2018-803=1
• SUSE Linux Enterprise Server 12 SP3
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-803=1
• SUSE Linux Enterprise High Performance Computing 12 SP3
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-803=1
• SUSE Linux Enterprise Server for SAP Applications 12 SP3
  zypper in -t patch SUSE-SLE-SERVER-12-SP3-2018-803=1

Package List:

• SUSE OpenStack Cloud 7 (x86_64)
  • apache2-debuginfo-2.4.23-29.18.2
  • apache2-prefork-2.4.23-29.18.2
  • apache2-2.4.23-29.18.2
  • apache2-prefork-debuginfo-2.4.23-29.18.2
  • apache2-worker-2.4.23-29.18.2
  • apache2-debugsource-2.4.23-29.18.2
  • apache2-utils-2.4.23-29.18.2
  • apache2-worker-debuginfo-2.4.23-29.18.2
  • apache2-example-pages-2.4.23-29.18.2
  • apache2-utils-debuginfo-2.4.23-29.18.2
• SUSE OpenStack Cloud 7 (noarch)
  • apache2-doc-2.4.23-29.18.2
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (ppc64le x86_64)
  • apache2-debuginfo-2.4.23-29.18.2
  • apache2-prefork-2.4.23-29.18.2
  • apache2-2.4.23-29.18.2
  • apache2-prefork-debuginfo-2.4.23-29.18.2
  • apache2-worker-2.4.23-29.18.2
  • apache2-debugsource-2.4.23-29.18.2
  • apache2-utils-2.4.23-29.18.2
  • apache2-worker-debuginfo-2.4.23-29.18.2
  • apache2-example-pages-2.4.23-29.18.2
  • apache2-utils-debuginfo-2.4.23-29.18.2
• SUSE Linux Enterprise Server for SAP Applications 12 SP2 (noarch)
  • apache2-doc-2.4.23-29.18.2
• SUSE Linux Enterprise Software Development Kit 12 SP3 (aarch64 ppc64le s390x x86_64)
  • apache2-debuginfo-2.4.23-29.18.2
  • apache2-devel-2.4.23-29.18.2
  • apache2-debugsource-2.4.23-29.18.2
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (ppc64le s390x x86_64)
  • apache2-debuginfo-2.4.23-29.18.2
  • apache2-prefork-2.4.23-29.18.2
  • apache2-2.4.23-29.18.2
  • apache2-prefork-debuginfo-2.4.23-29.18.2
  • apache2-worker-2.4.23-29.18.2
  • apache2-debugsource-2.4.23-29.18.2
  • apache2-utils-2.4.23-29.18.2
  • apache2-worker-debuginfo-2.4.23-29.18.2
  • apache2-example-pages-2.4.23-29.18.2
  • apache2-utils-debuginfo-2.4.23-29.18.2
• SUSE Linux Enterprise Server 12 SP2 LTSS 12-SP2 (noarch)
  • apache2-doc-2.4.23-29.18.2
• SUSE Linux Enterprise Server 12 SP3 (aarch64 ppc64le s390x x86_64)
  • apache2-debuginfo-2.4.23-29.18.2
  • apache2-prefork-2.4.23-29.18.2
  • apache2-2.4.23-29.18.2
  • apache2-prefork-debuginfo-2.4.23-29.18.2
  • apache2-worker-2.4.23-29.18.2
  • apache2-debugsource-2.4.23-29.18.2
  • apache2-utils-2.4.23-29.18.2
  • apache2-worker-debuginfo-2.4.23-29.18.2
  • apache2-example-pages-2.4.23-29.18.2
  • apache2-utils-debuginfo-2.4.23-29.18.2
• SUSE Linux Enterprise Server 12 SP3 (noarch)
  • apache2-doc-2.4.23-29.18.2
• SUSE Linux Enterprise High Performance Computing 12 SP3 (aarch64 x86_64)
  • apache2-debuginfo-2.4.23-29.18.2
  • apache2-prefork-2.4.23-29.18.2
  • apache2-2.4.23-29.18.2
  • apache2-prefork-debuginfo-2.4.23-29.18.2
  • apache2-worker-2.4.23-29.18.2
  • apache2-debugsource-2.4.23-29.18.2
  • apache2-utils-2.4.23-29.18.2
  • apache2-worker-debuginfo-2.4.23-29.18.2
  • apache2-example-pages-2.4.23-29.18.2
  • apache2-utils-debuginfo-2.4.23-29.18.2
• SUSE Linux Enterprise High Performance Computing 12 SP3 (noarch)
  • apache2-doc-2.4.23-29.18.2
• SUSE Linux Enterprise Server for SAP Applications 12 SP3 (ppc64le x86_64)
  • apache2-debuginfo-2.4.23-29.18.2
  • apache2-prefork-2.4.23-29.18.2
  • apache2-2.4.23-29.18.2
  • apache2-prefork-debuginfo-2.4.23-29.18.2
  • apache2-worker-2.4.23-29.18.2
  • apache2-debugsource-2.4.23-29.18.2
  • apache2-utils-2.4.23-29.18.2
  • apache2-worker-debuginfo-2.4.23-29.18.2
  • apache2-example-pages-2.4.23-29.18.2
  • apache2-utils-debuginfo-2.4.23-29.18.2
• SUSE Linux Enterprise Server for SAP Applications 12 SP3 (noarch)
  • apache2-doc-2.4.23-29.18.2

References:

• https://www.suse.com/security/cve/CVE-2017-15710.html
• https://www.suse.com/security/cve/CVE-2017-15715.html
• https://www.suse.com/security/cve/CVE-2018-1283.html
• https://www.suse.com/security/cve/CVE-2018-1301.html
• https://www.suse.com/security/cve/CVE-2018-1302.html
• https://www.suse.com/security/cve/CVE-2018-1303.html
• https://www.suse.com/security/cve/CVE-2018-1312.html
• https://bugzilla.suse.com/show_bug.cgi?id=1086774
• https://bugzilla.suse.com/show_bug.cgi?id=1086775
• https://bugzilla.suse.com/show_bug.cgi?id=1086813
• https://bugzilla.suse.com/show_bug.cgi?id=1086814
• https://bugzilla.suse.com/show_bug.cgi?id=1086817
• https://bugzilla.suse.com/show_bug.cgi?id=1086820