CVE-2016-8619
highpriority · track · 41EPSS 0.050 · 92 %ileDEEUUSEPSS · scored 2026-10-27
The function `read_data()` in security.c in curl before version 7.51.0 is vulnerable to memory double free.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 5.3–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2023-1652cURL: Mehrere SchwachstellenDeutsch2016-11-02csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um das System zum Absturz zu bringen, um Informationen aus den Cookies offenzulegen, um dem Benutzer falsche Informationen darzustellen und sich als ein Benutzer auszugeben.
- WID-SEC-W-2026-0180Dell Data Protection Advisor: Mehrere SchwachstellenDeutsch2026-01-20csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell Data Protection Advisor ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu erzeugen, Sicherheitsmaßnahmen zu umgehen und nicht näher spezifizierte Angriffe zu starten.
- CURL-CVE-2016-8619double free in krb5 code2016-11-02vendor · osvUS
In curl's implementation of the Kerberos authentication mechanism, the function `read_data()` in security.c is used to fill the necessary krb5 structures. When reading one of the length fields from the socket, it fails to ensure that the length parameter passed to realloc() is not set to 0. This would lead to realloc() getting called with a zero size and when doing so realloc() returns NULL *and* frees the memory - in contrary to normal realloc() fails where it only returns NULL - causing libcurl to free the memory *again* in the error path. This flaw could be triggered by a malicious or otherwise ill-behaving server.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (32)
External citations — patches, advisories, analysis.
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlcnnvd
- http://www.securityfocus.com/bid/94100cnnvd
- http://www.securitytracker.com/id/1037192cnnvd
- https://access.redhat.com/errata/RHSA-2018:2486cnnvd
- https://access.redhat.com/errata/RHSA-2018:3558cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8619cnnvd
- https://curl.haxx.se/CVE-2016-8619.patchcnnvd
- https://curl.haxx.se/docs/adv_20161102E.htmlcnnvd
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