CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
AI Score
Confidence
Low
EPSS
Percentile
39.9%
Issue Overview:
libuv is a multi-platform support library with a focus on asynchronous I/O. The uv_getaddrinfo
function in src/unix/getaddrinfo.c
(and its windows counterpart src/win/getaddrinfo.c
), truncates hostnames to 256 characters before calling getaddrinfo
. This behavior can be exploited to create addresses like 0x00007f000001
, which are considered valid by getaddrinfo
and could allow an attacker to craft payloads that resolve to unintended IP addresses, bypassing developer checks. The vulnerability arises due to how the hostname_ascii
variable (with a length of 256 bytes) is handled in uv_getaddrinfo
and subsequently in uv__idna_toascii
. When the hostname exceeds 256 characters, it gets truncated without a terminating null byte. As a result attackers may be able to access internal APIs or for websites (similar to MySpace) that allows users to have username.example.com
pages. Internal services that crawl or cache these user pages can be exposed to SSRF attacks if a malicious user chooses a long vulnerable username. This issue has been addressed in release version 1.48.0. Users are advised to upgrade. There are no known workarounds for this vulnerability. (CVE-2024-24806)
Affected Packages:
libuv
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update libuv to update your system.
New Packages:
aarch64:
libuv-1.39.0-1.amzn2.0.2.aarch64
libuv-devel-1.39.0-1.amzn2.0.2.aarch64
libuv-static-1.39.0-1.amzn2.0.2.aarch64
libuv-debuginfo-1.39.0-1.amzn2.0.2.aarch64
i686:
libuv-1.39.0-1.amzn2.0.2.i686
libuv-devel-1.39.0-1.amzn2.0.2.i686
libuv-static-1.39.0-1.amzn2.0.2.i686
libuv-debuginfo-1.39.0-1.amzn2.0.2.i686
src:
libuv-1.39.0-1.amzn2.0.2.src
x86_64:
libuv-1.39.0-1.amzn2.0.2.x86_64
libuv-devel-1.39.0-1.amzn2.0.2.x86_64
libuv-static-1.39.0-1.amzn2.0.2.x86_64
libuv-debuginfo-1.39.0-1.amzn2.0.2.x86_64
Red Hat: CVE-2024-24806
Mitre: CVE-2024-24806
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | libuv | < 1.39.0-1.amzn2.0.2 | libuv-1.39.0-1.amzn2.0.2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | libuv-devel | < 1.39.0-1.amzn2.0.2 | libuv-devel-1.39.0-1.amzn2.0.2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | libuv-static | < 1.39.0-1.amzn2.0.2 | libuv-static-1.39.0-1.amzn2.0.2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | libuv-debuginfo | < 1.39.0-1.amzn2.0.2 | libuv-debuginfo-1.39.0-1.amzn2.0.2.aarch64.rpm |
Amazon Linux | 2 | i686 | libuv | < 1.39.0-1.amzn2.0.2 | libuv-1.39.0-1.amzn2.0.2.i686.rpm |
Amazon Linux | 2 | i686 | libuv-devel | < 1.39.0-1.amzn2.0.2 | libuv-devel-1.39.0-1.amzn2.0.2.i686.rpm |
Amazon Linux | 2 | i686 | libuv-static | < 1.39.0-1.amzn2.0.2 | libuv-static-1.39.0-1.amzn2.0.2.i686.rpm |
Amazon Linux | 2 | i686 | libuv-debuginfo | < 1.39.0-1.amzn2.0.2 | libuv-debuginfo-1.39.0-1.amzn2.0.2.i686.rpm |
Amazon Linux | 2 | x86_64 | libuv | < 1.39.0-1.amzn2.0.2 | libuv-1.39.0-1.amzn2.0.2.x86_64.rpm |
Amazon Linux | 2 | x86_64 | libuv-devel | < 1.39.0-1.amzn2.0.2 | libuv-devel-1.39.0-1.amzn2.0.2.x86_64.rpm |