5.3

CVE-2023-33199: linuxfoundation rekor Reachable Assertion

CVSS: 5.3v3.1MediumModified
AliasesSUSE-SU-2023:2515-1CGA-52pw-c9gc-mjvfCGA-58ph-rffv-wx67
Published 26-05-2023Last modified 14-01-2025
Open JSON

Vulnerability summary

CVE-2023-33199 is a medium (CVSS 5.3) Reachable Assertion vulnerability in linuxfoundation rekor. EPSS estimates a 0.67% chance of exploitation in the next 30 days, higher than 51% of scored vulnerabilities.

Overall risk
21/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.67%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 11
CGA-28W2-CX4M-FX7FCGA-2VRC-7936-57M8CGA-3JQC-49MM-8WX2CGA-4X9F-Q936-V86VCGA-5PMW-24CC-R4V9CGA-CXC2-XJ3X-RW4F

Timeline

  1. 26-05-2023
    PublishedVulnerability first disclosed.
  2. 14-01-2025
    Last modifiedVulnerability information updated.

Description

Rekor's goals are to provide an immutable tamper resistant ledger of metadata generated within a software projects supply chain. A malformed proposed entry of the `intoto/v0.0.2` type can cause a panic on a thread within the Rekor process. The thread is recovered so the client receives a 500 error message and service still continues, so the availability impact of this is minimal. This has been fixed in v1.2.0 of Rekor. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.67%

Chance of exploitation in the next 30 days

Percentile

51%

Versus all other CVEs

30-day change

0.00 pp

From 0.67% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.67%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard8 products
  • aactl< 0.4.12-r7
  • rekorAll versions (No fix recorded)
  • rekor-backfill-indexAll versions (No fix recorded)
  • rekor-cliAll versions (No fix recorded)
  • rekor-fipsAll versions (No fix recorded)
Wolfi7 products
  • aactl< 0.4.12-r7
  • rekorAll versions (No fix recorded)
  • rekor-backfill-indexAll versions (No fix recorded)
  • rekor-cliAll versions (No fix recorded)
  • rekor-serverAll versions (No fix recorded)
Opensuse3 products
  • rekor&distro=openSUSE Leap 15.4< 1.2.1-150400.4.12.1
  • rekor&distro=openSUSE Leap 15.5< 1.2.1-150400.4.12.1
  • rekor&distro=openSUSE Tumbleweed< 1.2.1-1.1
Suse2 products
  • rekor&distro=SUSE Linux Enterprise Module for Basesystem 15 SP4< 1.2.1-150400.4.12.1
  • rekor&distro=SUSE Linux Enterprise Module for Basesystem 15 SP5< 1.2.1-150400.4.12.1
Github.com/sigstore1 product
  • rekor< 1.2.0
Linuxfoundation1 product
Sigstore1 product

7 vendors · 23 products

References

8 links