CVE-2020-25645: canonical ubuntu_linux
Vulnerability summary
CVE-2020-25645 is a high (CVSS 7.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 2.43% chance of exploitation in the next 30 days, higher than 84.2% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (reference, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 38 · Related 30Timeline
- 13-10-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A flaw was found in the Linux kernel in versions before 5.9-rc7. Traffic between two Geneve endpoints may be unencrypted when IPsec is configured to encrypt traffic for the specific UDP port used by the GENEVE tunnel allowing anyone between the two endpoints to read the traffic unencrypted. The main threat from this vulnerability is to data confidentiality.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
2.43%
Chance of exploitation in the next 30 days
Percentile
84%
Versus all other CVEs
30-day change
No change 0.00 pp
From 2.43% 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
1 foundExploit Reference (bugzilla.redhat.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu43 products
- linux< 4.4.0-197.229 | < 4.15.0-126.129 | < 5.4.0-56.62
- linux-aws< 4.4.0-1082.86 | < 4.4.0-1118.132 | < 4.15.0-1088.93 | < 5.4.0-1030.31
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.3All versions (No fix recorded)
- linux-aws-5.4< 5.4.0-1030.31~18.04.1
Suse24 products
- kgraft-patch-SLE12-SP2_Update_33&distro=SUSE Linux Enterprise Server 12 SP2-LTSS< 9-2.2
- kgraft-patch-SLE12-SP2_Update_33&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP2< 9-2.2
- kgraft-patch-SLE12-SP2_Update_34&distro=SUSE Linux Enterprise Server 12 SP2-LTSS< 6-2.2
- kgraft-patch-SLE12-SP2_Update_34&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP2< 6-2.2
- kgraft-patch-SLE12-SP2_Update_35&distro=SUSE Linux Enterprise Server 12 SP2-LTSS< 4-2.2
Netapp3 products
Debian2 products
- linux< 5.8.14-1
- debian_linuxEOL9.0 | 10.0
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 20.04
Linux1 product
- linux_kernel< 5.9.0 | 5.9.0 | 5.9.0:rc1 | 5.9.0:rc2 | 5.9.0:rc3 | 5.9.0:rc4 | 5.9.0:rc5 | 5.9.0:rc6
Opensuse1 product
- leapEOL15.1 | 15.2
7 vendors · 75 products
References
20 links- bugzilla.redhat.com/show_bug.cgi?id=1883988X Refsource MISCExploitIssue TrackingPatchVendor Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00035.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/10/msg00028.htmlMailing ListX Refsource MLISTThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/12/msg00027.htmlMailing ListX Refsource MLISTThird Party Advisory
- packetstormsecurity.com/files/161229/Kernel-Live-Patch-Security-Notice-LSN-0074-1.htmlX Refsource MISCThird Party AdvisoryVDB Entry
