CVE-2019-15920: linux linux_kernel Use After Free
CVSS: 4.3v3.1MediumModified
AliasesUBUNTU-CVE-2019-15920DEBIAN-CVE-2019-15920
Published 04-09-2019Last modified 05-08-2024
Vulnerability summary
CVE-2019-15920 is a medium (CVSS 4.3) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 1.77% chance of exploitation in the next 30 days, higher than 77.8% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
4.3/10
010
Medium · v3.1 (NVD)EPSS score
1.77%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 11 · Related 10Timeline
- 04-09-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in the Linux kernel before 5.0.10. SMB2_read in fs/cifs/smb2pdu.c has a use-after-free. NOTE: this was not fixed correctly in 5.0.10; see the 5.0.11 ChangeLog, which documents a memory leak.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 4.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- OSV · DebianEcosystem advisory · calculated4.3MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Medium 4.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:S/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
1.77%
Chance of exploitation in the next 30 days
Percentile
78%
Versus all other CVEs
30-day change
0.00 pp
From 1.77% on 21-09-2026
21-09-202621-10-2026
EPSS score1.77%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundLinux
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Ubuntu4 products
- linux-azure< 5.0.0-1014.14~18.04.1
- linux-hwe< 5.0.0-23.24~18.04.1
- linux-hwe-edgeAll versions (No fix recorded)
- linux-oem-osp1< 5.0.0-1015.16
Debian1 product
- linux< 5.2.6-1
Linux1 product
- linux_kernel< 5.0.10
Opensuse1 product
- leapEOL15.0 | 15.1
4 vendors · 7 products
References
9 links- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.10X Refsource MISCMailing ListVendor AdvisoryREPORT
- github.com/torvalds/linux/commit/088aaf17aa79300cab14dbee2569c58cfafd7d6eX Refsource MISCExploitPatchThird Party AdvisoryREPORT
- lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
