CVE-2023-34454

snappy-java is a fast compressor/decompressor for Java. Due to unchecked multiplications, an integer overflow may occur in versions prior to 1.1.10.1, causing an unrecoverable fatal error. The function `compress(char[] input)` in the file `Snappy.java` receives an array of characters and compresses it. It does so by multiplying the length by 2 and passing it to the rawCompress` function. Since the length is not tested, the multiplication by two can cause an integer overflow and become negative. The rawCompress function then uses the received length and passes it to the natively compiled maxCompressedLength function, using the returned value to allocate a byte array. Since the maxCompressedLength function treats the length as an unsigned integer, it doesn’t care that it is negative, and it returns a valid value, which is casted to a signed integer by the Java engine. If the result is negative, a `java.lang.NegativeArraySizeException` exception will be raised while trying to allocate the array `buf`. On the other side, if the result is positive, the `buf` array will successfully be allocated, but its size might be too small to use for the compression, causing a fatal Access Violation error. The same issue exists also when using the `compress` functions that receive double, float, int, long and short, each using a different multiplier that may cause the same issue. The issue most likely won’t occur when using a byte array, since creating a byte array of size 0x80000000 (or any other negative value) is impossible in the first place. Version 1.1.10.1 contains a patch for this issue.
Configurations

Configuration 1 (hide)

cpe:2.3:a:xerial:snappy-java:*:*:*:*:*:*:*:*

History

27 Jun 2023, 16:04

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5
CPE cpe:2.3:a:xerial:snappy-java:*:*:*:*:*:*:*:*
First Time Xerial
Xerial snappy-java
References (MISC) https://github.com/xerial/snappy-java/blob/master/src/main/java/org/xerial/snappy/Snappy.java - (MISC) https://github.com/xerial/snappy-java/blob/master/src/main/java/org/xerial/snappy/Snappy.java - Issue Tracking, Product
References (MISC) https://github.com/xerial/snappy-java/blob/05c39b2ca9b5b7b39611529cc302d3d796329611/src/main/java/org/xerial/snappy/Snappy.java#L422 - (MISC) https://github.com/xerial/snappy-java/blob/05c39b2ca9b5b7b39611529cc302d3d796329611/src/main/java/org/xerial/snappy/Snappy.java#L422 - Issue Tracking
References (MISC) https://github.com/xerial/snappy-java/security/advisories/GHSA-fjpj-2g6w-x25r - (MISC) https://github.com/xerial/snappy-java/security/advisories/GHSA-fjpj-2g6w-x25r - Vendor Advisory
References (MISC) https://github.com/xerial/snappy-java/blob/05c39b2ca9b5b7b39611529cc302d3d796329611/src/main/java/org/xerial/snappy/Snappy.java#L169 - (MISC) https://github.com/xerial/snappy-java/blob/05c39b2ca9b5b7b39611529cc302d3d796329611/src/main/java/org/xerial/snappy/Snappy.java#L169 - Issue Tracking
References (MISC) https://github.com/xerial/snappy-java/commit/d0042551e4a3509a725038eb9b2ad1f683674d94 - (MISC) https://github.com/xerial/snappy-java/commit/d0042551e4a3509a725038eb9b2ad1f683674d94 - Patch

15 Jun 2023, 17:15

Type Values Removed Values Added
New CVE

Information

Published : 2023-06-15 17:15

Updated : 2024-02-28 20:13


NVD link : CVE-2023-34454

Mitre link : CVE-2023-34454

CVE.ORG link : CVE-2023-34454


JSON object : View

Products Affected

xerial

  • snappy-java
CWE
CWE-190

Integer Overflow or Wraparound