CVE-2019-8912: canonical ubuntu_linux Use After Free
Vulnerability summary
CVE-2019-8912 is a high (CVSS 7.8) Use After Free vulnerability in canonical ubuntu_linux. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 50.9% of scored vulnerabilities.
Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 15 · Related 14Timeline
- 18-02-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
5 scores · 3 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.65%
Chance of exploitation in the next 30 days
Percentile
51%
Versus all other CVEs
30-day change
Decrease -0.01 pp
From 0.65% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu11 products
- linux< 4.15.0-47.50
- linux-aws< 4.15.0-1035.37
- linux-aws-hwe< 4.15.0-1035.37~16.04.1
- linux-azure< 4.15.0-1041.45~14.04.1 | < 4.15.0-1041.45 | < 4.18.0-1014.14~18.04.1
- linux-gcp< 4.15.0-1029.31~16.04.1 | < 4.15.0-1029.31
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 18.10
Debian1 product
- linux< 4.19.28-1
Linux1 product
- linux_kernel≥ 4.10, < 4.14.103 | ≥ 4.19, < 4.19.25 | ≥ 4.20, < 4.20.12 | 5.0:rc1 | 5.0:rc2 | 5.0:rc3 | 5.0:rc4 | 5.0:rc5 | 5.0:rc6 | 5.0:rc7 | 5.0:rc8
Opensuse1 product
- leapEOL15.0
Redhat1 product
- enterprise_linuxEOL7.0
6 vendors · 16 products
References
16 links- lists.opensuse.org/opensuse-security-announce/2019-04/msg00052.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
