CVE-2019-8912

moderate-risk
Published 2019-02-18

In the Linux kernel through 4.20.11, af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr.

Do I need to act?

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0.21% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.8/10 High
LOCAL / LOW complexity

Affected Products (15)

Affected Vendors

Redhat Linux Canonical Opensuse

References (17)

Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html
Patch http://patchwork.ozlabs.org/patch/1042902/
Third Party Advisory http://www.securityfocus.com/bid/107063
Third Party Advisory https://access.redhat.com/errata/RHSA-2020:0174
Third Party Advisory https://usn.ubuntu.com/3930-1/
Third Party Advisory https://usn.ubuntu.com/3930-2/
Third Party Advisory https://usn.ubuntu.com/3931-1/
Third Party Advisory https://usn.ubuntu.com/3931-2/
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-8912
Mailing List http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.html
Patch http://patchwork.ozlabs.org/patch/1042902/
Third Party Advisory http://www.securityfocus.com/bid/107063
Third Party Advisory https://access.redhat.com/errata/RHSA-2020:0174
Third Party Advisory https://usn.ubuntu.com/3930-1/
Third Party Advisory https://usn.ubuntu.com/3930-2/
Third Party Advisory https://usn.ubuntu.com/3931-1/
Third Party Advisory https://usn.ubuntu.com/3931-2/
43
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 1/34 · Minimal
Exposure 18/34 · Moderate