Double Free Affecting curl package, versions <7.51.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE311-CURL-545897
- published27 Jun 2018
- disclosed31 Jul 2018
Introduced: 27 Jun 2018
CVE-2016-8618 (opens in a new tab)How to fix?
Upgrade Alpine:3.11 curl to version 7.51.0 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream curl package and not the curl package as distributed by Alpine.
See How to fix? for Alpine:3.11 relevant fixed versions and status.
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.
References
- https://curl.haxx.se/docs/adv_20161102D.html
- https://www.tenable.com/security/tns-2016-21
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8618
- https://security-tracker.debian.org/tracker/CVE-2016-8618
- https://security.gentoo.org/glsa/201701-47
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8618
- https://access.redhat.com/errata/RHSA-2018:2486
- https://access.redhat.com/errata/RHSA-2018:3558
- http://www.securityfocus.com/bid/94098
- http://www.securitytracker.com/id/1037192
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-8618