CVE-2023-3269: Distros-[dirtyvma] privilege escalation via non-rcu-protected vma traversal
Vulnerability summary
CVE-2023-3269 is a high (CVSS 7.8) Use After Free vulnerability in fedoraproject fedora. EPSS estimates a 1.30% chance of exploitation in the next 30 days, higher than 70.5% 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 3 · Related 2Timeline
- 11-07-2023PublishedVulnerability first disclosed.
- 05-03-2025Last modifiedVulnerability information updated.
Description
A vulnerability exists in the memory management subsystem of the Linux kernel. The lock handling for accessing and updating virtual memory areas (VMAs) is incorrect, leading to use-after-free problems. This issue can be successfully exploited to execute arbitrary kernel code, escalate containers, and gain root privileges.
CVSS metrics
4 scores · 4 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/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
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.30%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.30% 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.
Ubuntu52 products
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
- linux-aws-5.13All versions (No fix recorded)
- linux-aws-5.19All versions (No fix recorded)
- linux-aws-5.3All versions (No fix recorded)
Debian1 product
- linux< 6.1.37-1 | < 6.3.11-1
Fedoraproject1 product
- fedoraEOL37 | 38
Linux1 product
- linux_kernelEOL≥ 6.1, < 6.1.37 | ≥ 6.2, < 6.3.11 | 6.4 | 6.4:rc1 | 6.4:rc2 | 6.4:rc3 | 6.4:rc4 | 6.4:rc5 | 6.4:rc6 | 6.4:rc7
Opensuse1 product
- kernel-source&distro=openSUSE Tumbleweed< 6.4.2-1.1
Redhat1 product
- enterprise_linuxEOL6.0 | 7.0 | 8.0 | 9.0
6 vendors · 57 products
References
17 links- bugzilla.redhat.com/show_bug.cgi?id=2215268Issue TrackingX Refsource REDHATPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2023/07/28/1Mailing List
- www.openwall.com/lists/oss-security/2023/08/25/1Mailing List
- www.openwall.com/lists/oss-security/2023/08/25/4Mailing List
- security.netapp.com/advisory/ntap-20230908-0001/Third Party Advisory
