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CVE-2024-36124— iq80 Snappy has an out-of-bounds read when uncompressing data, leading to JVM crash

Quick assessment

Affected
dain snappy
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Snappy是KNP Labs个人开发者的一个 PHP 库，允许从 url 或 html 页面生成缩略图、快照或 PDF。 Snappy 0.5之前版本存在安全漏洞，该漏洞源于该应用解压数据时越界读取，导致 JVM 崩溃。

CVSS 5.3 · Medium EPSS 0.49% · P40
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I. Basic Information for CVE-2024-36124

Vulnerability Information
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Vulnerability Title
iq80 Snappy has an out-of-bounds read when uncompressing data, leading to JVM crash
Source: CVE Program / CVE List V5
Vulnerability Description
iq80 Snappy is a compression/decompression library. When uncompressing certain data, Snappy tries to read outside the bounds of the given byte arrays. Because Snappy uses the JDK class `sun.misc.Unsafe` to speed up memory access, no additional bounds checks are performed and this has similar security consequences as out-of-bounds access in C or C++, namely it can lead to non-deterministic behavior or crash the JVM. iq80 Snappy is not actively maintained anymore. As quick fix users can upgrade to version 0.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
Snappy 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Snappy是KNP Labs个人开发者的一个 PHP 库，允许从 url 或 html 页面生成缩略图、快照或 PDF。 Snappy 0.5之前版本存在安全漏洞，该漏洞源于该应用解压数据时越界读取，导致 JVM 崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
dain snappy < 0.5 -

II. Public POCs for CVE-2024-36124

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III. Intelligence Information for CVE-2024-36124

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Vendor Advisories for CVE-2024-36124 (1)

IV. Related Vulnerabilities

Same product: snappy
Same weakness: CWE-125

V. Comments for CVE-2024-36124

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