ET EXPLOIT libPNG - Possible integer overflow in allocation in png_handle_sPLT

Query · suricata

flow:established;
content:"|89 50 4E 47 0D 0A 1A 0A|"; depth:8;
content:"sPLT";
isdataat:80,relative;
content:!"|00|"; distance:0;
Raw source ET EXPLOIT libPNG - Possible integer overflow in allocation in png_handle_sPLT · Suricata
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Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (
    msg:"ET EXPLOIT libPNG - Possible integer overflow in allocation in png_handle_sPLT";
    flow:established;
    content:"|89 50 4E 47 0D 0A 1A 0A|"; depth:8;
    content:"sPLT";
    isdataat:80,relative;
    content:!"|00|"; distance:0;
    reference:url,www.securiteam.com/unixfocus/5ZP0C0KDPG.html;
    classtype:misc-activity;
    sid:2001195; rev:9;
    metadata:created_at 2010_07_30, confidence Medium, signature_severity Major, updated_at 2019_07_26;
)

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