VulnerabilityModified
CVE-2021-38604
NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix.
HIGH 7.5EPSS 3.04%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.04%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference. NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.04% probability · 87th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- gnu/glibc · fedoraproject/fedora · oracle/communications cloud native core binding support function · oracle/communications cloud native core network function cloud native environment · oracle/communications cloud native core network repository function · oracle/communications cloud native core security edge protection proxy · oracle/communications cloud native core unified data repository · oracle/enterprise operations monitor
- Source
- cve@mitre.org
References
- https://blog.tuxcare.com/cve/tuxcare-team-identifies-cve-2021-38604-a-new-vulnerability-in-glibcExploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GYEXYM37RCJWJ6B5KQUYQI4NZBDDYSXP/
- https://security.gentoo.org/glsa/202208-24Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210909-0005/Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=28213Issue Tracking, Patch, Third Party Advisory
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=4cc79c217744743077bf7a0ec5e0a4318f1e6641
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=b805aebd42364fe696e417808a700fdb9800c9e8
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
- https://blog.tuxcare.com/cve/tuxcare-team-identifies-cve-2021-38604-a-new-vulnerability-in-glibcExploit, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GYEXYM37RCJWJ6B5KQUYQI4NZBDDYSXP/
- https://security.gentoo.org/glsa/202208-24Third Party Advisory
- https://security.netapp.com/advisory/ntap-20210909-0005/Third Party Advisory
- https://sourceware.org/bugzilla/show_bug.cgi?id=28213Issue Tracking, Patch, Third Party Advisory
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=4cc79c217744743077bf7a0ec5e0a4318f1e6641
- https://sourceware.org/git/?p=glibc.git%3Ba=commit%3Bh=b805aebd42364fe696e417808a700fdb9800c9e8
- https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.