Vulnerability Monitor

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CVE-2020-1751

An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC. Specifically, the backtrace function did not properly check the array bounds when storing the frame address, resulting in a denial of service or potential code execution. The highest threat from this vulnerability is to system availability.

Published

2020-04-17T19:15:14.437

Last Modified

2024-11-21T05:11:18.477

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.1 (MEDIUM)

CVSSv2 Vector

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

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

Exploitability Score

3.4

Impact Score

8.5

Weaknesses

Type: Secondary
CWE-787
Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnu	glibc	< 2.31	Yes
Operating System	redhat	enterprise_linux	8.0	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	19.10	Yes

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1751 Issue Tracking, Patch, Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/202006-04 Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20200430-0002/ Third Party Advisory ([email protected])
https://sourceware.org/bugzilla/show_bug.cgi?id=25423 Issue Tracking, Third Party Advisory ([email protected])
https://usn.ubuntu.com/4416-1/ Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1751 Issue Tracking, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202006-04 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20200430-0002/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://sourceware.org/bugzilla/show_bug.cgi?id=25423 Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4416-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)