7.5

CVE-2020-29652: golang ssh NULL Pointer Dereference

Modified
AliasesUBUNTU-CVE-2020-29652DEBIAN-CVE-2020-29652CGA-4x4r-2m92-88w3
Published 17-12-2020Last modified 04-08-2024

Vulnerability summary

CVE-2020-29652 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in golang ssh. EPSS estimates a 3.18% chance of exploitation in the next 30 days, higher than 88% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 3% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
3.18%
0%100%
Low · -0.09 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 2
RHSA-2021:1796CGA-28F7-9MWR-QJVGCGA-HP7G-JCW7-C892

Timeline

  1. 17-12-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

A nil pointer dereference in the golang.org/x/crypto/ssh component through v0.0.0-20201203163018-be400aefbc4c for Go allows remote attackers to cause a denial of service against SSH servers.

CVSS metrics

7 scores · 6 sources · 2 versions

EPSS trend

Probability

3.18%

Chance of exploitation in the next 30 days

Percentile

88%

Versus all other CVEs

30-day change

Decrease -0.09 pp

From 3.27% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard4 products
  • dex-k8s-authenticatorAll versions (No fix recorded)
  • k3d< 5.6.0-r11
  • k3d-proxy< 5.6.0-r11
  • k3d-tools< 5.6.0-r11
Wolfi3 products
  • k3d< 5.6.0-r11
  • k3d-proxy< 5.6.0-r11
  • k3d-tools< 5.6.0-r11
Debian1 product
  • golang-go.crypto< 1:0.0~git20201221.eec23a3-1
Golang1 product
  • ssh≤ 0.0.0-20201203163018-be400aefbc4c
Golang.org/x1 product
  • crypto< 0.0.0-20201216223049-8b5274cf687f
Opensuse1 product
  • velero&distro=openSUSE Tumbleweed< 1.7.1-1.1
Ubuntu1 product
  • golang-go.cryptoAll versions (No fix recorded) | < 1:0.0~git20201221.eec23a3-1

7 vendors · 12 products

References

12 links
Show all 12 references