Integer overflow in Haxx Libcurl
CVE-2016-7167
Multiple integer overflows in the (1) curl_escape, (2) curl_easy_escape, (3) curl_unescape, and (4) curl_easy_unescape functions in libcurl before 7.50.3 allow attackers to have unspecified impact via a string of length 0xffffffff, which triggers a heap-based buffer overflow.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.117 (96.0th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 96.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.117 · newest: 0.117 · change: 0.000
Affected products
- Haxx Libcurl
- Fedoraproject Fedora — versions 23, 24, 25
Weakness classification (CWE)
References
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.slackware.com/security/viewer.php (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2018:3558 (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- www.securityfocus.com/bid/92975 (vdb-entry, Broken Link)
- lists.debian.org/debian-lts-announce/2018/11/msg00005.html (mailing-list)
- www.securitytracker.com/id/1036813 (VDB Entry, Third Party Advisory, vdb-entry)
- curl.haxx.se/docs/adv_20160914.html (Vendor Advisory)
- www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
- access.redhat.com/errata/RHSA-2017:2016 (vendor-advisory)
Frequently asked questions
- What is CVE-2016-7167?
- CVE-2016-7167 is a critical-severity vulnerability in Haxx Libcurl, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2016-10-07.
- How severe is CVE-2016-7167?
- Critical severity. CVSS v3 base score is 9.8 out of 10.