VulnerabilityModified
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.
MEDIUM 5.5EPSS 0.61%
Does this matter?
Lower severity and a low EPSS score (0.61%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.0
- 5.5 MEDIUMCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.61% probability · 47th percentile
- CISA KEV
- Not listed
- Affected
- gnu/glibc
- Source
- cve@mitre.org
References
- http://www.securityfocus.com/bid/106835Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/202006-04
- https://sourceware.org/bugzilla/show_bug.cgi?id=24155Exploit, Issue Tracking, Third Party Advisory
- https://sourceware.org/ml/libc-alpha/2019-02/msg00041.htmlMailing List, Third Party Advisory
- http://www.securityfocus.com/bid/106835Third Party Advisory, VDB Entry
- https://security.gentoo.org/glsa/202006-04
- https://sourceware.org/bugzilla/show_bug.cgi?id=24155Exploit, Issue Tracking, Third Party Advisory
- https://sourceware.org/ml/libc-alpha/2019-02/msg00041.htmlMailing List, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.