7.5

CVE-2023-2911: debian debian_linux Out-of-bounds Write

CVSS: 7.5v3.1HighModified
AliasesALPINE-CVE-2023-2911UBUNTU-CVE-2023-2911DEBIAN-CVE-2023-2911
Published 21-06-2023Last modified 13-02-2025
Open JSON

Vulnerability summary

CVE-2023-2911 is a high (CVSS 7.5) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 2.45% chance of exploitation in the next 30 days, higher than 84.1% 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
2.45%
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 5 · Related 4
DSA-5439-1OPENSUSE-SU-2024:13015-1SUSE-SU-2023:2667-1SUSE-SU-2023:2836-1USN-6183-1

Timeline

  1. 21-06-2023
    PublishedVulnerability first disclosed.
  2. 13-02-2025
    Last modifiedVulnerability information updated.

Description

If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow. This issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

2.45%

Chance of exploitation in the next 30 days

Percentile

84%

Versus all other CVEs

30-day change

0.00 pp

From 2.45% on 19-09-2026

19-09-202619-10-2026
EPSS score
2.45%

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

Netapp6 products
Debian2 products
  • bind9< 1:9.18.16-1~deb12u1 | < 1:9.18.16-1
  • debian_linuxEOL11.0 | 12.0
Isc2 products
  • bind≥ 9.16.33, ≤ 9.16.41 | ≥ 9.18.7, ≤ 9.18.15 | ≥ 9.18.11, ≤ 9.18.15
  • bind 9≥ 9.16.33, ≤ 9.16.41 | ≥ 9.18.7, ≤ 9.18.15 | ≥ 9.16.33-S1, ≤ 9.16.41-S1 | ≥ 9.18.11-S1, ≤ 9.18.15-S1
Alpine1 product
  • bind≥ 9.16.33, < 9.16.42-r0
Fedoraproject1 product
Ubuntu1 product
  • bind9< 1:9.16.1-0ubuntu2.15 | < 1:9.18.12-0ubuntu0.22.04.2

6 vendors · 13 products

References

13 links
Show all 13 references