CVE-2022-4338: debian debian_linux Out-of-bounds Read
CVSS: 9.8v3.1CriticalModified
AliasesUBUNTU-CVE-2022-4338DEBIAN-CVE-2022-4338openSUSE-SU-2024:12860-1
Published 10-01-2023Last modified 03-08-2024
Vulnerability summary
CVE-2022-4338 is a critical (CVSS 9.8) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 1.32% chance of exploitation in the next 30 days, higher than 70.5% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (NVD)EPSS score
1.32%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 16 · Related 9Timeline
- 10-01-2023PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
An integer underflow in Organization Specific TLV was found in various versions of OpenvSwitch.
CVSS metrics
3 scores · 3 sources · 1 versionCritical 9.8Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.32%
Chance of exploitation in the next 30 days
Percentile
71%
Versus all other CVEs
30-day change
0.00 pp
From 1.32% on 20-09-2026
20-09-202620-10-2026
EPSS score1.32%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.
- CWE-191Integer Underflow (Wrap or Wraparound)The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.
Affected systems
Debian2 products
- openvswitch< 3.1.0~git20221212.739bcf2-4
- debian_linuxEOL11.0
Opensuse1 product
- openvswitch&distro=openSUSE Tumbleweed< 3.1.0-12.1
Openvswitch1 product
- openvswitch< 2.13.10 | ≥ 2.14.0, < 2.14.8 | ≥ 2.15.0, < 2.15.7 | ≥ 2.16.0, < 2.16.6 | ≥ 2.17.0, < 2.17.5 | ≥ 3.0.0, < 3.0.3
Ubuntu1 product
- openvswitchAll versions (No fix recorded) | < 2.9.8-0ubuntu0.18.04.4 | < 2.13.8-0ubuntu1.1 | < 2.17.3-0ubuntu0.22.04.2
4 vendors · 5 products
References
12 links- mail.openvswitch.org/pipermail/ovs-dev/2022-December/400596.htmlREPORTMailing ListPatchVendor Advisory
- security.gentoo.org/glsa/202311-16Vendor Advisory
