CVE-2007-2845

Heap-based buffer overflow in the CAB unpacker in avast!

published May 24, 2007

CVSS
—
EPSS
6%
Percentile
93.5
In the wild
Unconfirmed
What it is

⚠️ A crafty CAB archive can lead to a heap-based buffer overflow in avast! Anti-Virus Managed Client, potentially letting attackers execute arbitrary code! 🔥 Think of the CAB unpacker as a delivery service that opens packages without checking what's inside. If an attacker slides in a cleverly crafted package, the service might just follow instructions carelessly and unleash chaos! An attacker could gain the ability to run malicious code on victims' machines, which means they could hijack control, steal data, or even compromise the entire system! While this requires user assistance, it’s still a significant risk that could lead to devastating consequences.

Put simply

Think of the CAB unpacker as a delivery service that opens packages without checking what's inside. If an attacker slides in a cleverly crafted package, the service might just follow instructions carelessly and unleash chaos! This vulnerability stems from an integer cast error causing a buffer overflow when processing crafted CAB archives, allowing attackers to manipulate memory and execute arbitrary code.

What to do

An attacker could gain the ability to run malicious code on victims' machines, which means they could hijack control, steal data, or even compromise the entire system! While this requires user assistance, it’s still a significant risk that could lead to devastating consequences. Update avast! Anti-Virus Managed Client to version 4.7.700 or higher immediately to patch this vulnerability. Encourage users to be cautious about opening unexpected CAB files, as this can help mitigate the risk. You've got this! With the right updates and precautions, you can keep your systems safe and sound. 🛡️

The record
Technical detail
CVSS
Not scored
CVSS v4.0
Not supplied
EPSS
0.06275 · 93.5th percentile
Published
2007-05-24T18:00Z
EPSS history
Timeline
  • 24 MAY 18:00Z
    Heap-based buffer overflow in the CAB unpacker in avast!
    cvelistv5