Multiple vulnerabilities in Xen



Published: 2014-03-28 | Updated: 2020-08-10
Risk Medium
Patch available NO
Number of vulnerabilities 14
CVE-ID CVE-2014-5147
CVE-2014-4022
CVE-2014-4021
CVE-2014-3969
CVE-2014-3714
CVE-2014-3715
CVE-2014-3716
CVE-2014-3717
CVE-2014-3124
CVE-2014-3125
CVE-2014-2986
CVE-2014-2915
CVE-2014-1896
CVE-2014-2599
CWE-ID CWE-264
CWE-200
CWE-119
CWE-20
CWE-476
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Xen
Server applications / Virtualization software

Vendor Xen Project

Security Bulletin

This security bulletin contains information about 14 vulnerabilities.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU41361

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:A/AC:H/PR:/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-5147

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote #AU# to perform a denial of service (DoS) attack.

Xen 4.4.x, when running a 64-bit kernel on an ARM system, does not properly handle traps from the guest domain that use a different address width, which allows local guest users to cause a denial of service (host crash) via a crafted 32-bit process.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0

External links

http://www.securitytracker.com/id/1030724
http://xenbits.xen.org/xsa/advisory-102.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Information disclosure

EUVDB-ID: #VU41491

Risk: Low

CVSSv3.1: 1.3 [CVSS:3.1/AV:A/AC:L/PR:/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-4022

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote #AU# to gain access to sensitive information.

The alloc_domain_struct function in arch/arm/domain.c in Xen 4.4.x, when running on an ARM platform, does not properly initialize the structure containing the grant table pages for a domain, which allows local guest administrators to obtain sensitive information via the GNTTABOP_setup_table subhypercall.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0

External links

http://secunia.com/advisories/59523
http://www.securityfocus.com/bid/68184
http://www.securitytracker.com/id/1030471
http://xenbits.xen.org/xsa/advisory-101.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Buffer overflow

EUVDB-ID: #VU41543

Risk: Low

CVSSv3.1: 1.3 [CVSS:3.1/AV:A/AC:L/PR:/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-4021

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote #AU# to gain access to sensitive information.

Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 3.2.0 - 4.4.0

External links

http://linux.oracle.com/errata/ELSA-2014-0926.html
http://linux.oracle.com/errata/ELSA-2014-0926-1.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-July/135068.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-July/135071.html
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html
http://secunia.com/advisories/59208
http://secunia.com/advisories/60027
http://secunia.com/advisories/60130
http://secunia.com/advisories/60471
http://security.gentoo.org/glsa/glsa-201407-03.xml
http://support.citrix.com/article/CTX140984
http://www.debian.org/security/2014/dsa-3006
http://www.securityfocus.com/bid/68070
http://www.securitytracker.com/id/1030442
http://xenbits.xen.org/xsa/advisory-100.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU41575

Risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:A/AC:L/PR:/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3969

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote #AU# to execute arbitrary code.

Xen 4.4.x, when running on an ARM system, does not properly check write permissions on virtual addresses, which allows local guest administrators to gain privileges via unspecified vectors.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0

External links

http://secunia.com/advisories/58975
http://www.openwall.com/lists/oss-security/2014/06/04/14
http://www.securityfocus.com/bid/67819
http://www.securitytracker.com/id/1030333
http://xenbits.xen.org/xsa/advisory-98.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

5) Input validation error

EUVDB-ID: #VU41658

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3714

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

The ARM image loading functionality in Xen 4.4.x does not properly validate kernel length, which allows local users to read system memory or cause a denial of service (crash) via a crafted 32-bit ARM guest kernel in an image, which triggers a buffer overflow.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0

External links

http://www.openwall.com/lists/oss-security/2014/05/14/4
http://www.openwall.com/lists/oss-security/2014/05/15/6
http://www.openwall.com/lists/oss-security/2014/05/16/1
http://www.securitytracker.com/id/1030252
http://xenbits.xen.org/xsa/advisory-95.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Buffer overflow

EUVDB-ID: #VU41659

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3715

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

Buffer overflow in Xen 4.4.x allows local users to read system memory or cause a denial of service (crash) via a crafted 32-bit guest kernel, related to searching for an appended DTB.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0

External links

http://www.openwall.com/lists/oss-security/2014/05/14/4
http://www.openwall.com/lists/oss-security/2014/05/15/6
http://www.openwall.com/lists/oss-security/2014/05/16/1
http://www.securitytracker.com/id/1030252
http://xenbits.xen.org/xsa/advisory-95.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Input validation error

EUVDB-ID: #VU41660

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3716

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

Xen 4.4.x does not properly check alignment, which allows local users to cause a denial of service (crash) via an unspecified field in a DTB header in a 32-bit guest kernel.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0

External links

http://www.openwall.com/lists/oss-security/2014/05/14/4
http://www.openwall.com/lists/oss-security/2014/05/15/6
http://www.openwall.com/lists/oss-security/2014/05/16/1
http://www.securitytracker.com/id/1030252
http://xenbits.xen.org/xsa/advisory-95.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

8) Input validation error

EUVDB-ID: #VU41661

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3717

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.

Xen 4.4.x does not properly validate the load address for 64-bit ARM guest kernels, which allows local users to read system memory or cause a denial of service (crash) via a crafted kernel, which triggers a buffer overflow.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0

External links

http://www.openwall.com/lists/oss-security/2014/05/14/4
http://www.openwall.com/lists/oss-security/2014/05/15/6
http://www.openwall.com/lists/oss-security/2014/05/16/1
http://www.securitytracker.com/id/1030252
http://xenbits.xen.org/xsa/advisory-95.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

9) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU41716

Risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:A/AC:L/PR:/UI:N/S:U/C:L/I:L/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3124

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote #AU# to #BASIC_IMPACT#.

The HVMOP_set_mem_type control in Xen 4.1 through 4.4.x allows local guest HVM administrators to cause a denial of service (hypervisor crash) or possibly execute arbitrary code by leveraging a separate qemu-dm vulnerability to trigger invalid page table translations for unspecified memory page types.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.1.0 - 4.4.0

External links

http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133148.html
http://lists.fedoraproject.org/pipermail/package-announce/2014-May/133191.html
http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00003.html
http://security.gentoo.org/glsa/glsa-201407-03.xml
http://www.debian.org/security/2014/dsa-3006
http://www.openwall.com/lists/oss-security/2014/04/29/1
http://www.openwall.com/lists/oss-security/2014/04/30/10
http://www.securityfocus.com/bid/67113
http://www.securitytracker.com/id/1030160
http://xenbits.xen.org/xsa/advisory-92.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU41729

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-3125

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote #AU# to damange or delete data.

Xen 4.4.x, when running on an ARM system, does not properly context switch the CNTKCTL_EL1 register, which allows local guest users to modify the hardware timers and cause a denial of service (crash) via unspecified vectors.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0

External links

http://secunia.com/advisories/58347
http://www.openwall.com/lists/oss-security/2014/04/30/11
http://www.openwall.com/lists/oss-security/2014/04/30/5
http://www.securityfocus.com/bid/67157
http://www.securitytracker.com/id/1030184
http://xenbits.xen.org/xsa/advisory-91.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

11) NULL pointer dereference

EUVDB-ID: #VU41748

Risk: Low

CVSSv3.1: 3.3 [CVSS:3.1/AV:A/AC:L/PR:/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2014-2986

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can trigger denial of service conditions via unspecified vectors.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Xen: 4.4.0

External links

http://www.openwall.com/lists/oss-security/2014/04/23/3
http://www.openwall.com/lists/oss-security/2014/04/23/4
http://www.openwall.com/lists/oss-security/2014/04/23/5
http://www.securityfocus.com/bid/67047
http://www.securitytracker.com/id/1030146
http://xenbits.xen.org/xsa/advisory-94.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU41754

Risk: Low

CVSSv3.1: 3.2 [CVSS:3.1/AV:A/AC:L/PR:/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-2915

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote #AU# to perform a denial of service (DoS) attack.

Xen 4.4.x, when running on ARM systems, does not properly restrict access to hardware features, which allows local guest users to cause a denial of service (host or guest crash) via unspecified vectors, related to (1) cache control, (2) coprocessors, (3) debug registers, and (4) other unspecified registers.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.4.0

External links

http://www.openwall.com/lists/oss-security/2014/04/22/10
http://www.openwall.com/lists/oss-security/2014/04/23/2
http://www.securitytracker.com/id/1030135
http://xenbits.xen.org/xsa/advisory-93.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

13) Input validation error

EUVDB-ID: #VU41862

Risk: Low

CVSSv3.1: 3 [CVSS:3.1/AV:A/AC:L/PR:/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-1896

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote #AU# to read and manipulate data.

The (1) do_send and (2) do_recv functions in io.c in libvchan in Xen 4.2.x, 4.3.x, and 4.4-RC series allows local guests to cause a denial of service or possibly gain privileges via crafted xenstore ring indexes, which triggers a "read or write past the end of the ring."

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.2.0 - 4.4.0

External links

http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00011.html
http://security.gentoo.org/glsa/glsa-201407-03.xml
http://www.openwall.com/lists/oss-security/2014/02/07/12
http://www.openwall.com/lists/oss-security/2014/02/10/7
http://xenbits.xen.org/xsa/advisory-86.html
http://xenbits.xen.org/xsa/xsa86.patch


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

14) Input validation error

EUVDB-ID: #VU41882

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-2599

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The HVMOP_set_mem_access HVM control operations in Xen 4.1.x for 32-bit and 4.1.x through 4.4.x for 64-bit allow local guest administrators to cause a denial of service (CPU consumption) by leveraging access to certain service domains for HVM guests and a large input.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Xen: 4.1.0 - 4.4.0

External links

http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00002.html
http://security.gentoo.org/glsa/glsa-201407-03.xml
http://www.debian.org/security/2014/dsa-3006
http://www.openwall.com/lists/oss-security/2014/03/25/1
http://www.openwall.com/lists/oss-security/2014/03/25/2
http://www.securityfocus.com/bid/66407
http://www.securitytracker.com/id/1029956
http://xenbits.xen.org/xsa/advisory-89.html


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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