7.5

CVE-2020-12059: canonical ubuntu_linux NULL Pointer Dereference

Modified
AliasesSUSE-SU-2020:1158-1UBUNTU-CVE-2020-12059DEBIAN-CVE-2020-12059
Published 22-04-2020Last modified 04-08-2024

Vulnerability summary

CVE-2020-12059 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 2.44% chance of exploitation in the next 30 days, higher than 84.3% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 2% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (NVD)
EPSS score
2.44%
0%100%
Low · -0.28 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 3 · Related 1
DLA-3629-1RHSA-2021:1518USN-4528-1

Timeline

  1. 22-04-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in Ceph through 13.2.9. A POST request with an invalid tagging XML can crash the RGW process by triggering a NULL pointer exception.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.44%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

Decrease -0.28 pp

From 2.72% 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.

Suse13 products
  • ceph&distro=HPE Helion OpenStack 8< 12.2.12+git.1587570958.35d78d0243-2.45.1
  • ceph&distro=SUSE Enterprise Storage 5< 12.2.12+git.1587570958.35d78d0243-2.45.1
  • ceph&distro=SUSE Linux Enterprise Server 12 SP3-BCL< 12.2.12+git.1587570958.35d78d0243-2.45.1
  • ceph&distro=SUSE Linux Enterprise Server 12 SP3-LTSS< 12.2.12+git.1587570958.35d78d0243-2.45.1
  • ceph&distro=SUSE Linux Enterprise Server 12 SP4< 12.2.12+git.1587570958.35d78d0243-2.45.1
Canonical1 product
Debian1 product
  • ceph< 14.2.4-1
Linuxfoundation1 product
Ubuntu1 product
  • ceph< 12.2.13-0ubuntu0.18.04.4

5 vendors · 17 products

References

12 links
Show all 12 references