CVE-2019-12835

formats/xml.cpp in Leanify 0.4.3 allows for a controlled out-of-bounds write in xml_memory_writer::write via characters that require escaping

published June 15, 2019

CVSS
—
EPSS
2%
Percentile
75.4
In the wild
Unconfirmed
What it is

⚠️ An out-of-bounds write vulnerability in Leanify 0.4.3 could leave your data exposed! Just a few characters need to escape, and things can get messy. 😱 Think of it like over-packing a suitcase. If you try to shove in too many clothes, the zipper might burst open and spill everything out, causing chaos! Similarly, this flaw can cause data to overflow into unintended areas. An attacker could exploit this vulnerability to manipulate memory, potentially leading to corrupted data or crashes. While it isn’t currently known to be exploited, the risk of instability in your application is real!

Put simply

Think of it like over-packing a suitcase. If you try to shove in too many clothes, the zipper might burst open and spill everything out, causing chaos! Similarly, this flaw can cause data to overflow into unintended areas. This vulnerability arises from the xml_memory_writer::write function in formats/xml.cpp, where user-controlled input can bypass memory boundaries, allowing for out-of-bounds writes.

What to do

An attacker could exploit this vulnerability to manipulate memory, potentially leading to corrupted data or crashes. While it isn’t currently known to be exploited, the risk of instability in your application is real! To remediate this issue, upgrade Leanify to the latest version if available, or implement stricter input validation to prevent characters that need escaping. Regularly audit your code for similar vulnerabilities as part of your security hygiene! You've got this! Follow these steps, and you'll keep your application safe and sound! 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.01583 · 75.4th percentile
Published
2019-06-15T18:27Z
EPSS history
Timeline
  • 15 JUN 18:27Z
    formats/xml.cpp in Leanify 0.4.3 allows for a controlled out-of-bounds write in xml_memory_writer::write via characters that require escaping
    cvelistv5