CVE-2016-8618
highpriority · track · 41EPSS 0.046 · 92 %ileDEEUUSEPSS · scored 2026-10-27
The libcurl API function called `curl_maprintf()` before version 7.51.0 can be tricked into doing a double-free due to an unsafe `size_t` multiplication, on systems using 32 bit `size_t` variables.
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-2016-8618double free in curl_maprintf2016-11-02vendor · osvUS
The libcurl API function called `curl_maprintf()` can be tricked into doing a double free due to an unsafe `size_t` multiplication, on systems using 32-bit `size_t` variables. The function is also used internally in numerous situations. The function doubles an allocated memory area with realloc() and allows the size to wrap and become zero 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. Systems with 64-bit versions of the `size_t` type are not affected by this issue. This behavior can be triggered using the publicly exposed function.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (20)
External citations — patches, advisories, analysis.
- https://curl.haxx.se/docs/adv_20161102D.htmlPatchcnnvd
- https://www.auscert.org.au/bulletins/ESB-2022.4288cnnvd
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlenisa_euvd
- http://www.securityfocus.com/bid/94098enisa_euvd
- http://www.securitytracker.com/id/1037192enisa_euvd
- https://access.redhat.com/errata/RHSA-2018:2486enisa_euvd
- https://access.redhat.com/errata/RHSA-2018:3558enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8618enisa_euvd
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