=========================================================================Ubuntu Security Notice USN-5546-2
August 04, 2022

openjdk-8 vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 16.04 ESM

Summary:

Several security issues were fixed in OpenJDK 8.

Software Description:
- openjdk-8: Open Source Java implementation

Details:

USN-5546-1 fixed vulnerabilities in OpenJDK.
This update provides the corresponding updates for Ubuntu 16.04 ESM.

Original advisory details:

 Neil Madden discovered that OpenJDK did not properly verify ECDSA
 signatures. A remote attacker could possibly use this issue to insert,
 edit or obtain sensitive information. This issue only affected OpenJDK
 17 and OpenJDK 18. (CVE-2022-21449)

 It was discovered that OpenJDK incorrectly limited memory when compiling a
 specially crafted XPath expression. An attacker could possibly use this
 issue to cause a denial of service. This issue was fixed in OpenJDK 8 and
 OpenJDK 18. USN-5388-1 and USN-5388-2 addressed this issue in OpenJDK 11
 and OpenJDK 17. (CVE-2022-21426)

 It was discovered that OpenJDK incorrectly handled converting certain
 object arguments into their textual representations. An attacker could
 possibly use this issue to cause a denial of service. This issue was
 fixed in OpenJDK 8 and OpenJDK 18. USN-5388-1 and USN-5388-2 addressed
 this issue in OpenJDK 11 and OpenJDK 17. (CVE-2022-21434)

 It was discovered that OpenJDK incorrectly validated the encoded length of
 certain object identifiers. An attacker could possibly use this issue to
 cause a denial of service. This issue was fixed in OpenJDK 8 and OpenJDK 18.
 USN-5388-1 and USN-5388-2 addressed this issue in OpenJDK 11 and OpenJDK 17.
 (CVE-2022-21443)

 It was discovered that OpenJDK incorrectly validated certain paths. An
 attacker could possibly use this issue to bypass the secure validation
 feature and expose sensitive information in XML files. This issue was
 fixed in OpenJDK 8 and OpenJDK 18. USN-5388-1 and USN-5388-2 addressed this
 issue in OpenJDK 11 and OpenJDK 17. (CVE-2022-21476)

 It was discovered that OpenJDK incorrectly parsed certain URI strings. An
 attacker could possibly use this issue to make applications accept
 invalid of malformed URI strings. This issue was fixed in OpenJDK 8 and
 OpenJDK 18. USN-5388-1 and USN-5388-2 addressed this issue in OpenJDK 11
 and OpenJDK 17. (CVE-2022-21496)

 It was discovered that OpenJDK incorrectly generated class code in the
 Hotspot component. An attacker could possibly use this issue to obtain
 sensitive information. (CVE-2022-21540)

 It was dicovered that OpenJDK incorrectly restricted access to the
 invokeBasic() method in the Hotspot component. An attacker could possibly
 use this issue to insert, edit or obtain sensitive information.
 (CVE-2022-21541)

 It was discovered that OpenJDK incorrectly computed exponentials. An
 attacker could possibly use this issue to insert, edit or obtain sensitive
 information. This issue only affected OpenJDK 17.
 (CVE-2022-21549)

 It was discovered that OpenJDK includes a copy of Xalan that incorrectly
 handled integer truncation. An attacker could possibly use this issue to
 execute arbitrary code. (CVE-2022-34169)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 16.04 ESM:
  openjdk-8-jdk                   8u342-b07-0ubuntu1~16.04
  openjdk-8-jre                   8u342-b07-0ubuntu1~16.04
  openjdk-8-jre-headless          8u342-b07-0ubuntu1~16.04
  openjdk-8-jre-zero              8u342-b07-0ubuntu1~16.04

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any Java
applications or applets to make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-5546-2
  https://ubuntu.com/security/notices/USN-5546-1
  CVE-2022-21426, CVE-2022-21434, CVE-2022-21443, CVE-2022-21476,
  CVE-2022-21496, CVE-2022-21540, CVE-2022-21541, CVE-2022-34169