Vulnerability Monitor

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CVE-2018-1000001

In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and potential code execution.

Published

2018-01-31T14:29:00.607

Last Modified

2024-11-21T03:39:23.620

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnu	glibc	≤ 2.26	Yes
Operating System	canonical	ubuntu_linux	12.04	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	17.10	Yes
Application	redhat	virtualization_host	4.0	Yes
Operating System	redhat	enterprise_linux_desktop	7.0	Yes
Operating System	redhat	enterprise_linux_server	7.0	Yes
Operating System	redhat	enterprise_linux_server_aus	7.6	Yes
Operating System	redhat	enterprise_linux_server_eus	7.6	Yes
Operating System	redhat	enterprise_linux_server_tus	7.6	Yes
Operating System	redhat	enterprise_linux_workstation	7.0	Yes

References

http://seclists.org/oss-sec/2018/q1/38 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/102525 Third Party Advisory, VDB Entry ([email protected])
http://www.securitytracker.com/id/1040162 Third Party Advisory, VDB Entry ([email protected])
https://access.redhat.com/errata/RHSA-2018:0805 Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20190404-0003/ ([email protected])
https://usn.ubuntu.com/3534-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/3536-1/ Third Party Advisory ([email protected])
https://www.exploit-db.com/exploits/43775/ Exploit, Third Party Advisory, VDB Entry ([email protected])
https://www.exploit-db.com/exploits/44889/ Exploit, Third Party Advisory, VDB Entry ([email protected])
https://www.halfdog.net/Security/2017/LibcRealpathBufferUnderflow/ Third Party Advisory ([email protected])
http://seclists.org/oss-sec/2018/q1/38 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/102525 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1040162 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2018:0805 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20190404-0003/ (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3534-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/3536-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/43775/ Exploit, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/44889/ Exploit, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://www.halfdog.net/Security/2017/LibcRealpathBufferUnderflow/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)