Vulnerability Monitor

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CVE-2019-7309

In the GNU C Library (aka glibc or libc6) through 2.29, the memcmp function for the x32 architecture can incorrectly return zero (indicating that the inputs are equal) because the RDX most significant bit is mishandled.

Published

2019-02-03T02:29:00.237

Last Modified

2024-11-21T04:47:58.757

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 5.5 (MEDIUM)

CVSSv2 Vector

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

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

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	gnu	glibc	≤ 2.29	Yes

References

http://www.securityfocus.com/bid/106835 Third Party Advisory, VDB Entry ([email protected])
https://security.gentoo.org/glsa/202006-04 ([email protected])
https://sourceware.org/bugzilla/show_bug.cgi?id=24155 Exploit, Issue Tracking, Third Party Advisory ([email protected])
https://sourceware.org/ml/libc-alpha/2019-02/msg00041.html Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/106835 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202006-04 (af854a3a-2127-422b-91ae-364da2661108)
https://sourceware.org/bugzilla/show_bug.cgi?id=24155 Exploit, Issue Tracking, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://sourceware.org/ml/libc-alpha/2019-02/msg00041.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)