CVE-2016-5421
published 2016-08-10CVE-2016-5421: Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly have unspecified other impact via…
PriorityP346high8.1CVSS 3.1
AVNACHPRNUINSUCHIHAH
EPSS
8.04%
94.0th percentile
Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly have unspecified other impact via unknown vectors.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | macos_sierra_10.12.2_security_update_2016-003_el_capitan_and_security_update_201 | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | curl | < curl 7.50.1-1 (bookworm) | curl 7.50.1-1 (bookworm) |
| debian | debian_linux | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| android | — | — | |
| haxx | curl | >= 0 < 7.50.1-1 | 7.50.1-1 |
| haxx | curl | >= 0 < 7.50.1-1 | 7.50.1-1 |
| haxx | curl | >= 0 < 7.50.1-1 | 7.50.1-1 |
| haxx | curl | >= 0 < 7.50.1-1 | 7.50.1-1 |
| haxx | curl | >= 0 < 7.35.0-1ubuntu2.8 | 7.35.0-1ubuntu2.8 |
| haxx | curl | >= 0 < 7.47.0-1ubuntu2.1 | 7.47.0-1ubuntu2.1 |
| haxx | libcurl | <= 7.50.0 | — |
| opensuse | leap | — | — |
| opensuse | opensuse | — | — |
CVSS provenance
nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.1HIGH
vendor_debian8.1HIGH
vendor_redhat8.1HIGH
vendor_ubuntu7.5HIGH
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Apple
CVE-2016-5421: macOS Sierra 10.12.2, Security Update 2016-003 El Capitan, and Security Update 2016-007 Yosemite
vendor_apple·2016-12-13·CVSS 8.1
CVE-2016-5421 [HIGH] CVE-2016-5421: macOS Sierra 10.12.2, Security Update 2016-003 El Capitan, and Security Update 2016-007 Yosemite
Apple Security Update: About the security content of macOS Sierra 10.12.2, Security Update 2016-003 El Capitan, and Security Update 2016-007 Yosemite
Product: macOS Sierra 10.12.2, Security Update 2016-003 El Capitan, and Security Update 2016-007 Yosemite
CVE: CVE-2016-5421
Component: CVE-2016-5421
Android
CVE-2016-5421: Android Security Bulletin 2016-12-01
CVE: CVE-2016-5421
Severity: HIGH
Affected AOSP versions: 7
vendor_android·2016-12-01·CVSS 8.1
CVE-2016-5421 [HIGH] CVE-2016-5421: Android Security Bulletin 2016-12-01
CVE: CVE-2016-5421
Severity: HIGH
Affected AOSP versions: 7
Android Security Bulletin 2016-12-01
CVE: CVE-2016-5421
Severity: HIGH
Affected AOSP versions: 7.0
References: A-31271247
Ubuntu
curl vulnerabilities
vendor_ubuntu·2016-08-08·CVSS 7.5
CVE-2016-5419 [HIGH] curl vulnerabilities
Title: curl vulnerabilities
Summary: Several security issues were fixed in curl.
Bru Rom discovered that curl incorrectly handled client certificates when
resuming a TLS session. (CVE-2016-5419)
It was discovered that curl incorrectly handled client certificates when
reusing TLS connections. (CVE-2016-5420)
Marcelo Echeverria and Fernando Muñoz discovered that curl incorrectly
reused a connection struct, contrary to expectations. This issue only
applied to Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-5421)
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
curl: Use of connection struct after free
vendor_redhat·2016-08-03·CVSS 8.1
CVE-2016-5421 [HIGH] CWE-416 curl: Use of connection struct after free
curl: Use of connection struct after free
Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly have unspecified other impact via unknown vectors.
A use-after-free flaw was found in libcurl. When invoking curl_easy_perform() after cleaning up a multi session, an application can be tricked into using libcurl to connect to a malicious server, allowing an attacker to potentially execute arbitrary code. The highest threat from this vulnerability is to data confidentiality and integrity as well as data confidentiality.
Statement: The versions of `curl` as shipped with Red Hat Enterprise Linux 5, 6, and 7 are marked as "notaffected" because they did not include the vulnerable code, which was introduced in a later version of the
Debian
CVE-2016-5421: curl - Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to contro...
vendor_debian·2016·CVSS 8.1
CVE-2016-5421 [HIGH] CVE-2016-5421: curl - Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to contro...
Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly have unspecified other impact via unknown vectors.
Scope: local
bookworm: resolved (fixed in 7.50.1-1)
bullseye: resolved (fixed in 7.50.1-1)
forky: resolved (fixed in 7.50.1-1)
sid: resolved (fixed in 7.50.1-1)
trixie: resolved (fixed in 7.50.1-1)
GHSA
GHSA-89f8-gvcm-9g9g: Use-after-free vulnerability in libcurl before 7
ghsa_unreviewed·2022-05-13
CVE-2016-5421 [HIGH] CWE-416 GHSA-89f8-gvcm-9g9g: Use-after-free vulnerability in libcurl before 7
Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly have unspecified other impact via unknown vectors.
OSV
CVE-2016-5421: Use-after-free vulnerability in libcurl before 7
osv·2016-08-10·CVSS 8.1
CVE-2016-5421 [HIGH] CVE-2016-5421: Use-after-free vulnerability in libcurl before 7
Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly have unspecified other impact via unknown vectors.
OSV
curl vulnerabilities
osv·2016-08-08·CVSS 7.5
CVE-2016-5419 [HIGH] curl vulnerabilities
curl vulnerabilities
Bru Rom discovered that curl incorrectly handled client certificates when
resuming a TLS session. (CVE-2016-5419)
It was discovered that curl incorrectly handled client certificates when
reusing TLS connections. (CVE-2016-5420)
Marcelo Echeverria and Fernando Muñoz discovered that curl incorrectly
reused a connection struct, contrary to expectations. This issue only
applied to Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-5421)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2016-5419 CVE-2016-5420 CVE-2016-5421 mingw-curl: various flaws [epel-7]
bugzilla·2016-08-03·CVSS 7.5
CVE-2016-5419 [HIGH] CVE-2016-5419 CVE-2016-5420 CVE-2016-5421 mingw-curl: various flaws [epel-7]
CVE-2016-5419 CVE-2016-5420 CVE-2016-5421 mingw-curl: various flaws [epel-7]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora EPEL.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
[bug automatically created by: add-tracking-bugs]
Bugzilla
CVE-2016-5419 CVE-2016-5420 CVE-2016-5421 curl: various flaws [fedora-all]
bugzilla·2016-08-03·CVSS 7.5
CVE-2016-5419 [HIGH] CVE-2016-5419 CVE-2016-5420 CVE-2016-5421 curl: various flaws [fedora-all]
CVE-2016-5419 CVE-2016-5420 CVE-2016-5421 curl: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fed
Bugzilla
CVE-2016-5419 CVE-2016-5420 CVE-2016-5421 mingw-curl: various flaws [fedora-all]
bugzilla·2016-08-03·CVSS 7.5
CVE-2016-5419 [HIGH] CVE-2016-5419 CVE-2016-5420 CVE-2016-5421 mingw-curl: various flaws [fedora-all]
CVE-2016-5419 CVE-2016-5420 CVE-2016-5421 mingw-curl: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions
Bugzilla
CVE-2016-5421 curl: Use of connection struct after free
bugzilla·2016-08-01·CVSS 8.1
CVE-2016-5421 [HIGH] CVE-2016-5421 curl: Use of connection struct after free
CVE-2016-5421 curl: Use of connection struct after free
A use-after-free vulnerability in libcurl was found. libcurl works with easy handles using the type 'CURL *' that are objects the application creates using curl_easy_init(). They are the handles that are all each associated with a single transfer at a time. libcurl also has an internal struct that represents and holds most state that is related to a single connection. An easy handle can hold references to one or many such connection structs depending on the requested operations.
When using libcurl's multi interface, an application performs transfers by adding one or more easy handles to the multi handle and then it can drive all those transfers in parallel.
Due to a flaw, libcurl could leave a pointer to a freed connection struct d
http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.htmlhttp://lists.opensuse.org/opensuse-updates/2016-09/msg00094.htmlhttp://www.debian.org/security/2016/dsa-3638http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlhttp://www.securityfocus.com/bid/92306http://www.securitytracker.com/id/1036536http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059http://www.ubuntu.com/usn/USN-3048-1https://access.redhat.com/errata/RHSA-2018:3558https://curl.haxx.se/docs/adv_20160803C.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/https://security.gentoo.org/glsa/201701-47https://source.android.com/security/bulletin/2016-12-01.htmlhttps://www.tenable.com/security/tns-2016-18http://lists.opensuse.org/opensuse-updates/2016-09/msg00011.htmlhttp://lists.opensuse.org/opensuse-updates/2016-09/msg00094.htmlhttp://www.debian.org/security/2016/dsa-3638http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.htmlhttp://www.securityfocus.com/bid/92306http://www.securitytracker.com/id/1036536http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.563059http://www.ubuntu.com/usn/USN-3048-1https://access.redhat.com/errata/RHSA-2018:3558https://curl.haxx.se/docs/adv_20160803C.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GLPXQQKURBQFM4XM6645VRPTOE2AWG33/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3GQH4V3XAQ5Z53AMQRDEC3C3UHTW7QR/https://security.gentoo.org/glsa/201701-47https://source.android.com/security/bulletin/2016-12-01.htmlhttps://www.tenable.com/security/tns-2016-18
2016-08-10
Published