CVE-2016-8622

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Summary

CVECVE-2016-8622
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-07-31 21:29:00 UTC
Updated2023-11-07 02:36:00 UTC
DescriptionThe URL percent-encoding decode function in libcurl before 7.51.0 is called `curl_easy_unescape`. Internally, even if this function would be made to allocate a unscape destination buffer larger than 2GB, it would return that new length in a signed 32 bit integer variable, thus the length would get either just truncated or both truncated and turned negative. That could then lead to libcurl writing outside of its heap based buffer.

Risk And Classification

Problem Types: CWE-787

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Haxx Libcurl All All All All
Application Haxx Libcurl All All All All

References

ReferenceSourceLinkTags
Red Hat Customer Portal REDHAT access.redhat.com
cURL/libcURL CVE-2016-8622 Remote Security Bypass Vulnerability BID www.securityfocus.com Third Party Advisory, VDB Entry
1388386 – (CVE-2016-8622) CVE-2016-8622 curl: URL unescape heap overflow via integer truncation CONFIRM bugzilla.redhat.com Issue Tracking, Patch, Third Party Advisory
Red Hat Customer Portal REDHAT access.redhat.com Third Party Advisory
curl - URL unescape heap overflow via integer truncation CONFIRM curl.haxx.se Patch, Vendor Advisory
CPU Oct 2018 CONFIRM www.oracle.com
cURL/libcurl Multiple Bugs Let Remote Users Inject Cookies, Reuse Connections, and Execute Arbitrary Code and Let Local Users Obtain Potentially Sensitive Information and Execute Arbitrary Code - SecurityTracker SECTRACK www.securitytracker.com Third Party Advisory, VDB Entry
cURL: Multiple vulnerabilities (GLSA 201701-47) — Gentoo security GENTOO security.gentoo.org Third Party Advisory
[R1] LCE 4.8.2 Fixes Multiple Third-party Library Vulnerabilities - Security Advisory | Tenable Network Security CONFIRM www.tenable.com Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 500114 Alpine Linux Security Update for curl
  • 503769 Alpine Linux Security Update for curl
  • 710385 Gentoo Linux cURL Multiple Vulnerabilities (GLSA 201701-47)

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