Quantum Secular Labs / Blog / Advisories

CVE-2009-2675: Sun JDK: Privilege escalation

CVE-2009-2675 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Sun JDK. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

Integer overflow in the unpack200 utility in Sun Java Runtime Environment (JRE) in JDK and JRE 6 before Update 15, and JDK and JRE 5.0 before Update 20, allows context-dependent attackers to gain privileges via unspecified length fields in the header of a Pack200-compressed JAR file, which leads to a heap-based buffer overflow during decompression.

Severity breakdown

CVSS v2.0 10.0: AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access vector: Network. Exploitable remotely over the network.
  • Access complexity: Low. No special conditions are required.
  • Authentication: None. No authentication is needed.
  • Confidentiality impact: Complete. Total information disclosure.
  • Integrity impact: Complete. Total loss of integrity.
  • Availability impact: Complete. Total shutdown of the component.

Affected products

  • Sun JDK: up to and including 6; 5.0 update_1; 5.0 update_10; 5.0 update_11; 5.0 update_12; 5.0 update_13; 5.0 update_14; 5.0 update_15; 5.0 update_16; 5.0 update_17; 5.0 update_2; 5.0 update_3
  • Sun JRE: up to and including 6; 5.0 update_1; 5.0 update_10; 5.0 update_11; 5.0 update_12; 5.0 update_13; 5.0 update_14; 5.0 update_15; 5.0 update_16; 5.0 update_17; 5.0 update_19; 5.0 update_2

References