CVE-2016-8623
CVE-2016-8623 is a low-severity vulnerability in Haxx Curl with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: Low (CVSS 3.x base score 3.3)
- CVSS v2: 5.0
- EPSS exploit prediction: 3% (83rd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-416
- Affected product: Haxx Curl
- Published:
- Last modified:
Description
A flaw was found in curl before version 7.51.0. The way curl handles cookies permits other threads to trigger a use-after-free leading to information disclosure.
Frequently asked questions
- What is CVE-2016-8623?
- A flaw was found in curl before version 7.51.0. The way curl handles cookies permits other threads to trigger a use-after-free leading to information disclosure.
- How severe is CVE-2016-8623?
- CVE-2016-8623 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2016-8623 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (83rd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2016-8623?
- CVE-2016-8623 affects Haxx Curl. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2016-8623?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2016-8623 published?
- CVE-2016-8623 was published on 2018-08-01 and last updated on 2026-06-17.
References
- http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- http://www.securityfocus.com/bid/94106
- http://www.securitytracker.com/id/1037192
- https://access.redhat.com/errata/RHSA-2018:2486
- https://access.redhat.com/errata/RHSA-2018:3558
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8623
- https://curl.haxx.se/CVE-2016-8623.patch
- https://curl.haxx.se/docs/adv_20161102I.html
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://security.gentoo.org/glsa/201701-47
- https://www.tenable.com/security/tns-2016-21
Affected products (1)
- cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
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