7.5

CVE-2023-25656: notation-go has excessive memory allocation on verification

Modified
AliasesCGA-qqmq-7q2v-mhjjCGA-wmh9-mghh-j455GHSA-87x9-7grx-m28v
Published 20-02-2023Last modified 27-11-2024

Vulnerability summary

CVE-2023-25656 is a high (CVSS 7.5) vulnerability in notaryproject notation-go. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.1% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.44%
0%100%
Low · 0.00 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 0 · Related 3
CGA-CX4P-WVHC-Q6Q3CGA-GXHC-4FRJ-PVQ5CGA-JJ7H-3C55-CR89

Timeline

  1. 20-02-2023
    PublishedVulnerability first disclosed.
  2. 27-11-2024
    Last modifiedVulnerability information updated.

Description

notation-go is a collection of libraries for supporting Notation sign, verify, push, and pull of oci artifacts. Prior to version 1.0.0-rc.3, notation-go users will find their application using excessive memory when verifying signatures. The application will be killed, and thus availability is impacted. The problem has been patched in the release v1.0.0-rc.3. Some workarounds are available. Users can review their own trust policy file and check if the identity string contains `=#`. Meanwhile, users should only put trusted certificates in their trust stores referenced by their own trust policy files, and make sure the `authenticity` validation is set to `enforce`.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.44%

Chance of exploitation in the next 30 days

Percentile

37%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.44% on 22-09-2026

22-09-202622-10-2026

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

Chainguard1 product
  • zot< 2.1.2-r7
Github.com/notaryproject1 product
  • notation-go< 1.0.0-rc.3
Notaryproject1 product
  • notation-go≥ 1.0.0-rc.3, < 1.0.0-rc.3 | 0.7.0:alpha1 | 0.8.0:alpha1 | 0.9.0:alpha1
Wolfi1 product
  • zot< 2.1.2-r7

4 vendors · 4 products

References

6 links