CVE-2019-25045: linux linux_kernel Use After Free
CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2019-25045DEBIAN-CVE-2019-25045
Published 07-06-2021Last modified 05-08-2024
Vulnerability summary
CVE-2019-25045 is a high (CVSS 7.8) Use After Free vulnerability in linux linux_kernel. EPSS estimates a 0.50% chance of exploitation in the next 30 days, higher than 41.7% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.50%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2reference
Advisory lineage
Upstream 0 · Downstream 3 · Related 3Timeline
- 07-06-2021PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
An issue was discovered in the Linux kernel before 5.0.19. The XFRM subsystem has a use-after-free, related to an xfrm_state_fini panic, aka CID-dbb2483b2a46.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- 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
Medium 4.6Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
0.50%
Chance of exploitation in the next 30 days
Percentile
42%
Versus all other CVEs
30-day change
0.00 pp
From 0.50% on 18-09-2026
18-09-202618-10-2026
EPSS score0.50%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundExploit Reference (syzkaller.appspot.com)
Maturity: unknown
Exploit Reference (sites.google.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Ubuntu32 products
- linux< 4.4.0-166.195 | < 4.15.0-66.75
- linux-aws< 4.4.0-1056.60 | < 4.4.0-1096.107 | < 4.15.0-1052.54
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3All versions (No fix recorded)
- linux-aws-fips< 4.15.0-2018.18 | All versions (No fix recorded)
Netapp21 products
Debian1 product
- linux< 5.2.6-1
Linux1 product
- linux_kernel< 5.0.19
4 vendors · 55 products
References
9 links- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.19X Refsource MISCREPORTMailing ListRelease NotesVendor Advisory
- syzkaller.appspot.com/bug?id=f99edaeec58ad40380ed5813d89e205861be2896X Refsource MISCREPORTExploitMailing ListThird Party Advisory
- sites.google.com/view/syzscope/warning-in-xfrm_state_fini-2X Refsource MISCREPORTExploitThird Party Advisory
