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CVE-2016-2108 is a memory-corruption vulnerability in OpenSSL ASN.1 handling. In affected releases, i2c_ASN1_INTEGER can underflow its output buffer and perform an out-of-bounds write when encoding zero represented as a negative ASN.1 integer. Although normal ASN.1 parsing does not ordinarily create this negative-zero representation, a separate defect in d2i_ASN1_TYPE can interpret a large universal ASN.1 tag as negative zero. The combined flaws are reachable when an application deserializes attacker-controlled ASN.1 data containing an ANY field and subsequently reserializes it. Applications that parse and re-encode X.509 certificates are known to be affected.
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No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
17 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
OpenSSL memory corruption vulnerability involving ASN.1 negative zero handling and reserialization of untrusted ASN.1 structures.
OpenSSL ASN.1 encoding memory-corruption vulnerability that can be triggered with a crafted certificate, causing denial of service or arbitrary code execution.
OpenSSL ASN.1 encoder memory-corruption flaw that can cause denial of service or potential arbitrary code execution through a crafted certificate.
An OpenSSL flaw fixed by the Red Hat JBoss Core Services httpd 2.4.23 update.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.