How CVE-2025-27170 Works
CVE-2025-27170 is a NULL pointer dereference vulnerability in Adobe Illustrator (versions 29.2.1, 28.7.4, and earlier). When processing a maliciously crafted file, the application fails to validate a pointer before dereferencing it, causing a crash. Attackers exploit this by tricking users into opening a specially designed .AI or .EPS file, leading to denial of service (DoS). The flaw resides in the file-parsing component, where improper memory handling occurs during object rendering.
DailyCVE Form
Platform: Adobe Illustrator
Version: ≤29.2.1, ≤28.7.4
Vulnerability: NULL Pointer Dereference
Severity: Medium
Date: 03/11/2025
What Undercode Say:
Exploitation:
1. Malicious File Creation:
- Use a hex editor to craft an .AI file with a corrupted object table.
with open("exploit.ai", "wb") as f: f.write(b"\x00\x00\x00\x00") Triggers NULL deref
2. Trigger the Crash:
- Distribute the file via phishing. User must open it in Illustrator.
Protection:
1. Patch:
Check Illustrator version: /Applications/Adobe\ Illustrator/Contents/Info.plist | grep -A1 CFBundleVersion
2. Workaround:
- Disable opening untrusted files via Illustrator preferences.
Detection:
1. Log Analysis:
grep -i "segmentation fault" /var/log/system.log
2. YARA Rule:
rule Illustrator_NULL_Deref {
strings: $sig = "Illustrator 29.2.1"
condition: $sig and file_size < 1MB
}
Mitigation:
- Memory Protections:
sysctl -w kern.memory_protection=1 macOS
- Sandboxing:
sandbox-exec -n no-network /Applications/Adobe\ Illustrator/Contents/MacOS/Illustrator
References:
- Adobe Security Bulletin: APSB25-XX
- CWE-476: NULL Pointer Dereference
References:
Reported By: https://nvd.nist.gov/vuln/detail/CVE-2025-27170
Extra Source Hub:
Undercode
