4.4

CVE-2010-2023: exim Race Condition

CVSS: 4.4v2.0MediumModified
AliasesDEBIAN-CVE-2010-2023
Published 07-06-2010Last modified 07-08-2024
Open JSON

Vulnerability summary

CVE-2010-2023 is a medium (CVSS 4.4) Race Condition vulnerability in exim. EPSS estimates a 0.28% chance of exploitation in the next 30 days, higher than 19.3% of scored vulnerabilities.

Overall risk
18/100
0100
Low · default modelHow is this calculated?
CVSS score
4.4/10
010
Medium · v2.0 (NVD)
EPSS score
0.28%
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 1 · Related 1
OPENSUSE-SU-2024:10017-1

Timeline

  1. 07-06-2010
    PublishedVulnerability first disclosed.
  2. 07-08-2024
    Last modifiedVulnerability information updated.

Description

transports/appendfile.c in Exim before 4.72, when a world-writable sticky-bit mail directory is used, does not verify the st_nlink field of mailbox files, which allows local users to cause a denial of service or possibly gain privileges by creating a hard link to another user's file.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.28%

Chance of exploitation in the next 30 days

Percentile

19%

Versus all other CVEs

30-day change

0.00 pp

From 0.28% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.28%

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

Debian1 product
  • exim4< 4.72-1
Exim1 product
  • eximEOL≤ 4.71 | 4.10 | 4.20 | 4.21 | 4.22 | 4.23 | 4.24 | 4.30 | 4.31 | 4.32 | 4.33 | 4.34 | 4.40 | 4.41 | 4.42 | 4.43 | 4.44 | 4.50 | 4.51 | 4.52 | 4.53 | 4.54 | 4.60 | 4.61 | 4.62 | 4.63 | 4.64 | 4.65 | 4.66 | 4.67 | 4.68 | 4.69 | 4.70

2 vendors · 2 products

References

19 links
Show all 19 references