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CVE-2016-8622

Status Candidate

Overview

The 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.

Related Files

Red Hat Security Advisory 2018-3558-01
Posted Nov 13, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3558-01 - The Apache HTTP Server is a powerful, efficient, and extensible web server. The httpd24 packages provide a recent stable release of version 2.4 of the Apache HTTP Server, along with the mod_auth_kerb module. Issues addressed include buffer overflow, bypass, denial of service, heap overflow, null pointer, out of bounds write, and use-after-free vulnerabilities.

tags | advisory, web, denial of service, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2016-5419, CVE-2016-5420, CVE-2016-5421, CVE-2016-7141, CVE-2016-7167, CVE-2016-8615, CVE-2016-8616, CVE-2016-8617, CVE-2016-8618, CVE-2016-8619, CVE-2016-8620, CVE-2016-8621, CVE-2016-8622, CVE-2016-8623, CVE-2016-8624, CVE-2016-8625, CVE-2016-9586, CVE-2017-1000100, CVE-2017-1000101, CVE-2017-1000254, CVE-2017-1000257, CVE-2017-15710, CVE-2017-15715, CVE-2017-7407, CVE-2017-8816, CVE-2017-8817, CVE-2018-1000007
SHA-256 | 4abdca181cc67933f360c5393ddadd7197a24c99bd7985727a9e00a4d0cad5b6
Red Hat Security Advisory 2018-2486-01
Posted Aug 17, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-2486-01 - This release adds the new Apache HTTP Server 2.4.29 packages that are part of the JBoss Core Services offering. This release serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.23, and includes bug fixes and enhancements. Issues addressed include buffer overflow, heap overflow, and use-after-free vulnerabilities.

tags | advisory, web, overflow, vulnerability
systems | linux, redhat
advisories | CVE-2016-0718, CVE-2016-7167, CVE-2016-8615, CVE-2016-8616, CVE-2016-8617, CVE-2016-8618, CVE-2016-8619, CVE-2016-8621, CVE-2016-8622, CVE-2016-8623, CVE-2016-8624, CVE-2016-8625, CVE-2016-9598, CVE-2017-1000254, CVE-2017-1000257, CVE-2017-6004, CVE-2017-7186, CVE-2017-7244, CVE-2017-7245, CVE-2017-7246, CVE-2018-0500
SHA-256 | 140c5c41e74ea3c15e65121e0032d6722516e2191125272a7af63151aff85e5d
Gentoo Linux Security Advisory 201701-47
Posted Jan 20, 2017
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201701-47 - Multiple vulnerabilities have been found in cURL, the worst of which could allow remote attackers to execute arbitrary code. Versions less than 7.52.1 are affected.

tags | advisory, remote, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2014-8150, CVE-2014-8151, CVE-2016-0755, CVE-2016-3739, CVE-2016-5419, CVE-2016-5420, CVE-2016-5421, CVE-2016-7141, CVE-2016-7167, CVE-2016-8615, CVE-2016-8616, CVE-2016-8617, CVE-2016-8618, CVE-2016-8619, CVE-2016-8620, CVE-2016-8621, CVE-2016-8622, CVE-2016-8623, CVE-2016-8624, CVE-2016-8625, CVE-2016-9586, CVE-2016-9594
SHA-256 | ed17dde2328ade9790f91afaff126cf8be5cf927530ff9055acf129e816be470
Ubuntu Security Notice USN-3123-1
Posted Nov 4, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3123-1 - It was discovered that curl incorrectly reused client certificates when built with NSS. A remote attacker could possibly use this issue to hijack the authentication of a TLS connection. Nguyen Vu Hoang discovered that curl incorrectly handled escaping certain strings. A remote attacker could possibly use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2016-7141, CVE-2016-7167, CVE-2016-8615, CVE-2016-8616, CVE-2016-8617, CVE-2016-8618, CVE-2016-8619, CVE-2016-8620, CVE-2016-8621, CVE-2016-8622, CVE-2016-8623, CVE-2016-8624
SHA-256 | 9a583cd9fd7d0779073b4a1732e533632181d0c8e3450d97b2e4e7952b834f9c
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