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CVE-2015-3195 is a memory-leak vulnerability in OpenSSL's ASN1_TFLG_COMBINE decoding implementation. Malformed X509_ATTRIBUTE structures can cause error handling to mishandle allocated memory when PKCS#7 or CMS data is decoded. It affects OpenSSL before 0.9.8zh, 1.0.0 before 1.0.0t, 1.0.1 before 1.0.1q, and 1.0.2 before 1.0.2e. SSL/TLS processing is not affected.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
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.
11 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Memory leak in OpenSSL X509_ATTRIBUTE handling affecting PKCS#7 and CMS routines
OpenSSL memory leak vulnerability in malformed X509_ATTRIBUTE handling affecting PKCS#7 and CMS parsing.
An OpenSSL flaw fixed by the Red Hat JBoss Core Services httpd 2.4.23 update.
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.