GHSA-fjpj-2g6w-x25r · 深刻度： medium · エコシステム： maven — snappy-java's Integer Overflow vulnerability in compress leads to DoS
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.
総合評価: CVE-2023-34454 は中リスク（48.4/100）。CVSS 深刻度は中。悪用される可能性が高い（EPSS 1.47%、70 パーセンタイル） 推奨対応: 影響資産を整理し、修補計画に組み込んでください。
リスクは変動します。再評価に基づき、本ページの表示内容を更新しています。
EPSS は日次で悪用されやすさの相対度合いを推定します。パーセンタイルは採点済み CVE の中での相対位置（高いほど相対的に深刻）を示します。
| # | 日付 | 旧 EPSS スコア | 新 EPSS スコア | Δ（新 − 旧） |
|---|---|---|---|---|
| 1 | 2026-06-16 | 1.22% | 1.47% | +0.25% |
| 2 | 2026-06-15 | 0.67% | 1.22% | +0.56% |
| 3 | 2026-04-23 | — | 0.67% | — |
EPSS の全履歴 （全 22 件）
この CVE の CVSS 指標。
| ベーススコア | バージョン | 深刻度 | ベクトル | 悪用しやすさ | 影響 | スコアの出典 |
|---|---|---|---|---|---|---|
| 5.9 | 3.1 | MEDIUM |
|
2.2 | 3.6 | [email protected] |
| 7.5 | 3.1 | HIGH |
|
3.9 | 3.6 | [email protected] |
GHSA-fjpj-2g6w-x25r · 深刻度： medium · エコシステム： maven — snappy-java's Integer Overflow vulnerability in compress leads to DoS
| vendor | priority | summary | link |
|---|---|---|---|
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-34454 |
ubuntu
|
medium | CVE-2023-34454 medium priority: Ubuntu including 1 source packages (snappy-java), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): needs-triage 8, ignored 5. | https://ubuntu.com/security/CVE-2023-34454 |
| ベンダー | 製品 | バージョン | 生の CPE |
|---|---|---|---|
| xerial | snappy-java | < 1.1.10.1 | cpe:2.3:a:xerial:snappy-java:*:*:*:*:*:*:*:* |