(Oracle Issues Fix for Oracle Linux) libcurl Integer Overflow in Escape Functions May Let Users Execute Arbitrary Code on the Target System
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SecurityTracker Alert ID: 1039121 |
SecurityTracker URL: http://securitytracker.com/id/1039121
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CVE Reference:
CVE-2016-7167
(Links to External Site)
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Date: Aug 10 2017
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Impact:
Execution of arbitrary code via local system, Execution of arbitrary code via network, User access via local system, User access via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): libcurl 7.11.1 - 7.50.2
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Description:
A vulnerability was reported in libcurl. A user can execute arbitrary code on the target system.
A user can supply a specially crafted length parameter value to certain libcurl functions to trigger an integer overflow and execute arbitrary code on the target system.
The curl_escape(), curl_easy_escape(), curl_unescape(), and curl_easy_unescape() functions are affected.
The specific impact depends on the application using libcurl.
The curl command line tool is not affected.
The Mitre CVE Assignment Team reported this vulnerability.
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Impact:
A user can execute arbitrary code on the target system.
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Solution:
Oracle has issued a fix.
The Oracle Linux advisory is available at:
http://linux.oracle.com/errata/ELSA-2017-2016.html
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Vendor URL: linux.oracle.com/errata/ELSA-2017-2016.html (Links to External Site)
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Cause:
Boundary error
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Underlying OS: Linux (Oracle)
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Underlying OS Comments: 7
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Subject: [El-errata] ELSA-2017-2016 Moderate: Oracle Linux 7 curl security, bug fix, and enhancement update
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Oracle Linux Security Advisory ELSA-2017-2016
http://linux.oracle.com/errata/ELSA-2017-2016.html
The following updated rpms for Oracle Linux 7 have been uploaded to the
Unbreakable Linux Network:
x86_64:
curl-7.29.0-42.el7.x86_64.rpm
libcurl-7.29.0-42.el7.i686.rpm
libcurl-7.29.0-42.el7.x86_64.rpm
libcurl-devel-7.29.0-42.el7.i686.rpm
libcurl-devel-7.29.0-42.el7.x86_64.rpm
SRPMS:
http://oss.oracle.com/ol7/SRPMS-updates/curl-7.29.0-42.el7.src.rpm
Description of changes:
[7.29.0-42]
- fix use of uninitialized variable detected by Covscan
[7.29.0-41]
- make FTPS work with --proxytunnel (#1420327)
[7.29.0-40]
- make FTPS work with --proxytunnel (#1420327)
[7.29.0-39]
- work around race condition in PK11_FindSlotByName() in NSS (#1404815)
[7.29.0-38]
- make FTPS work with --proxytunnel (#1420327)
[7.29.0-37]
- fix tight loop in non-blocking TLS handhsake over proxy (#1388162)
- handle cookies with numerical IPv6 address (#1341503)
- make libcurl recognize chacha20-poly1305 and SHA384 cipher-suites
(#1374740)
- curl -E: allow to escape ':' in cert nickname (#1376062)
- run automake in %prep to avoid patching Makefile.in files from now on
[7.29.0-36]
- reject negative string lengths in curl_easy_[un]escape() (CVE-2016-7167)
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