CVE-2017-7376CWE-119

CVE-2017-7376

Critical · published February 20, 2018

CVSS v3.0
9.8
EPSS
23%
Percentile
97.7
In the wild
Unconfirmed
What it is

⚠️ A sneaky buffer overflow lurks in libxml2, ready to cause some serious mayhem! 🚨 Attackers can exploit an incorrect limit for port values, leading to arbitrary code execution during redirects. Imagine a delivery service that never checks the weight limits of packages—resulting in them being crushed under the weight of an overly heavy order. Just like that, this buffer overflow lets attackers force the server to accept much more than it can handle, creating the perfect storm for chaos. If exploited, this vulnerability could allow attackers to execute arbitrary code on the server, potentially taking control of critical functions. It’s like handing over the keys to your entire delivery system, granting them full access to sensitive data and operations!

Put simply

Imagine a delivery service that never checks the weight limits of packages—resulting in them being crushed under the weight of an overly heavy order. Just like that, this buffer overflow lets attackers force the server to accept much more than it can handle, creating the perfect storm for chaos. This buffer overflow in libxml2 occurs due to an incorrect limit set for port values during redirect handling, allowing attackers to send specially crafted requests that overflow buffer memory.

What to do

If exploited, this vulnerability could allow attackers to execute arbitrary code on the server, potentially taking control of critical functions. It’s like handing over the keys to your entire delivery system, granting them full access to sensitive data and operations! To remediate this issue, ensure you upgrade to a fixed version of libxml2 as soon as possible. Additionally, audit your usage of libxml2 to mitigate any potential impact from this vulnerability. Regularly review your application code for unsafe buffer handling practices. You've got this! Stay proactive and patch up your system to keep everything secure. 🛡️

The record
Technical detail
CVSS v3.0
9.8 · CRITICAL
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.22981 · 97.7th percentile
Weakness
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer
Published
2018-02-20T00:29Z
Affected products (11)
ProductVersionsFixed in
xmlsoft/libxml2< 2.9.52.9.5
google/androidall versions—
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debian/debian_linuxall versions—
debian/debian_linuxall versions—
References (15)
EPSS history
Timeline
  • 19 FEB 19:00Z
    Buffer overflow in libxml2 allows remote attackers to execute arbitrary code by leveraging an incorrect limit for port values when handling redirects
    cvelistv5