6.5

CVE-2023-6277: fedoraproject fedora Uncontrolled Resource Consumption

CVSS: 6.5v3.1MediumModified
AliasesUBUNTU-CVE-2023-6277DEBIAN-CVE-2023-6277CGA-fg4w-954q-8772
Published 24-11-2023Last modified 22-01-2026

Vulnerability summary

CVE-2023-6277 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in fedoraproject fedora. EPSS estimates a 1.82% chance of exploitation in the next 30 days, higher than 78.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
1.82%
0%100%
Low · +0.01 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 2 · Related 4

Timeline

  1. 24-11-2023
    PublishedVulnerability first disclosed.
  2. 22-01-2026
    Last modifiedVulnerability information updated.

Description

An out-of-memory flaw was found in libtiff. Passing a crafted tiff file to TIFFOpen() API may allow a remote attacker to cause a denial of service via a craft input with size smaller than 379 KB.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

1.82%

Chance of exploitation in the next 30 days

Percentile

78%

Versus all other CVEs

30-day change

+0.01 pp

From 1.81% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.82%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (gitlab.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Chainguard1 product
  • tiff< 4.6.0-r1
Debian1 product
  • tiffAll versions (No fix recorded) | < 4.5.1+git230720-2
Fedoraproject1 product
Libtiff1 product
Ubuntu1 product
  • tiff< 4.0.3-7ubuntu0.11+esm12 | < 4.0.6-1ubuntu0.8+esm15 | < 4.0.9-5ubuntu0.10+esm5 | < 4.1.0+git191117-2ubuntu0.20.04.12 | < 4.3.0-6ubuntu0.8
Wolfi1 product
  • tiff< 4.6.0-r1

6 vendors · 6 products

References

29 links
Show all 29 references