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CVE-2018-16840

Status Candidate

Overview

A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up an 'easy' handle in the `Curl_close()` function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct.

Related Files

Gentoo Linux Security Advisory 201903-03
Posted Mar 11, 2019
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201903-3 - Multiple vulnerabilities have been found in cURL, the worst of which could result in a Denial of Service condition. Versions less than 7.64.0 are affected.

tags | advisory, denial of service, vulnerability
systems | linux, gentoo
advisories | CVE-2018-14618, CVE-2018-16839, CVE-2018-16840, CVE-2018-16842, CVE-2019-3822, CVE-2019-3823
MD5 | 2f866be211b86ff71d0279d185e7082f
Slackware Security Advisory - curl Updates
Posted Nov 1, 2018
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New curl packages are available for Slackware 14.0, 14.1, 14.2, and -current to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2018-16839, CVE-2018-16840, CVE-2018-16842
MD5 | bb5cef23d5a330d2899d41f12541a7ec
Ubuntu Security Notice USN-3805-1
Posted Oct 31, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3805-1 - Harry Sintonen discovered that curl incorrectly handled SASL authentication. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. Brian Carpenter discovered that curl incorrectly handled memory when closing certain handles. A remote attacker could 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-2018-16839, CVE-2018-16840, CVE-2018-16842
MD5 | 62d9032b56d438de573bf274b8252a5c
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