CVE-2017-0663

A remote code execution vulnerability in libxml2 could enable an attacker using a specially crafted file to execute arbitrary code within the context of an unprivileged process. This issue is rated as High due to the possibility of remote code execution in an application that uses this library. Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-37104170.

A remote code execution vulnerability in libxml2 could enable an attacker using a specially crafted file to execute arbitrary code within the context of an unprivileged process. This issue is rated as High due to the possibility of remote code execution in an application that uses this library. Product: Android. Versions: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1, 7.0, 7.1.1, 7.1.2. Android ID: A-37104170.

Use-after-free error could lead to crash (CVE-2016-4658).

Use-after-free vulnerability in libxml2 through 2.9.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the XPointer range-to function (CVE-2016-5131).

libxml2 2.9.4 and earlier does not offer a flag directly indicating that the current document may be read but other files may not be opened, which makes it easier for remote attackers to conduct XML External Entity (XXE) attacks via a crafted document (CVE-2016-9318).

Heap buffer overflow in xmlAddID (CVE-2017-0663).

Integer overflow in memory debug code in libxml2 before 2.9.5 (CVE-2017-5130).

NULL pointer deref in xmlDumpElementContent (CVE-2017-5969).

Prevent unwanted external entity reference (CVE-2017-7375).

Increase buffer space for port in HTTP redirect support (CVE-2017-7376).

The function xmlSnprintfElementContent in valid.c was vulnerable to a stack buffer overflow (CVE-2017-9047, CVE-2017-9048).

The function xmlDictComputeFastKey in dict.c was vulnerable to a heap-based buffer over-read (CVE-2017-9049).

The function xmlDictAddString was vulnerable to a heap-based buffer over-read (CVE-2017-9050).

It was discovered that libxml2 incorrecty handled certain files. An attacker could use this issue with specially constructed XML data to cause libxml2 to consume resources, leading to a denial of service (CVE-2017-15412).

Wei Lei discovered that libxml2 incorrecty handled certain parameter entities. An attacker could use this issue with specially constructed XML data to cause libxml2 to consume resources, leading to a denial of service (CVE-2017-16932).

The libxml2 package has been updated to version 2.9.7 to fix these issues and several other bugs.

These are all security issues fixed in the libxml2-2-2.9.12-1.2 package on the GA media of openSUSE Tumbleweed.

This update for libxml2 fixes the following issues:

Security issues fixed:

• CVE-2017-0663: Fixed a heap buffer overflow in xmlAddID (bsc#1044337)
• CVE-2017-5969: Fixed a NULL pointer deref in xmlDumpElementContent (bsc#1024989)

This update for libxml2 fixes the following issues:

Security issues fixed:

• CVE-2017-0663: Fixed a heap buffer overflow in xmlAddID (bsc#1044337)
• CVE-2017-5969: Fixed a NULL pointer deref in xmlDumpElementContent (bsc#1024989)
• CVE-2017-7375: Prevented an unwanted external entity reference (bsc#1044894)
• CVE-2017-7376: Increase buffer space for port in HTTP redirect support (bsc#1044887)

It was discovered that a type confusion error existed in libxml2. An attacker could use this to specially construct XML data that could cause a denial of service or possibly execute arbitrary code. (CVE-2017-0663)

It was discovered that libxml2 did not properly validate parsed entity references. An attacker could use this to specially construct XML data that could expose sensitive information. (CVE-2017-7375)

It was discovered that a buffer overflow existed in libxml2 when handling HTTP redirects. An attacker could use this to specially construct XML data that could cause a denial of service or possibly execute arbitrary code. (CVE-2017-7376)

Marcel Böhme and Van-Thuan Pham discovered a buffer overflow in libxml2 when handling elements. An attacker could use this to specially construct XML data that could cause a denial of service or possibly execute arbitrary code. (CVE-2017-9047)

Marcel Böhme and Van-Thuan Pham discovered a buffer overread in libxml2 when handling elements. An attacker could use this to specially construct XML data that could cause a denial of service. (CVE-2017-9048)

Marcel Böhme and Van-Thuan Pham discovered multiple buffer overreads in libxml2 when handling parameter-entity references. An attacker could use these to specially construct XML data that could cause a denial of service. (CVE-2017-9049, CVE-2017-9050)