6.5

CVE-2023-5388: debian debian_linux Observable Discrepancy

CVSS: 6.5v3.1MediumModified
AliasesALPINE-CVE-2023-5388SUSE-RU-2024:2564-1SUSE-RU-2024:2684-1
Published 19-03-2024Last modified 04-11-2025
Open JSON

Vulnerability summary

CVE-2023-5388 is a medium (CVSS 6.5) Observable Discrepancy vulnerability in debian debian_linux. EPSS estimates a 0.97% chance of exploitation in the next 30 days, higher than 61.3% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.97%
0%100%
Low · +0.15 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 35 · Related 11
DLA-3757-1DLA-3769-1DLA-3775-1DSA-5643-1DSA-5644-1MGASA-2024-0049

Timeline

  1. 19-03-2024
    PublishedVulnerability first disclosed.
  2. 04-11-2025
    Last modifiedVulnerability information updated.

Description

NSS was susceptible to a timing side-channel attack when performing RSA decryption. This attack could potentially allow an attacker to recover the private data. This vulnerability affects Firefox < 124, Firefox ESR < 115.9, and Thunderbird < 115.9.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.97%

Chance of exploitation in the next 30 days

Percentile

61%

Versus all other CVEs

30-day change

+0.15 pp

From 0.82% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.97%

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

Suse24 products
  • mozilla-nss&distro=SUSE Enterprise Storage 7.1< 3.101.1-150000.3.117.1 | < 3.90.2-150000.3.108.1
  • mozilla-nss&distro=SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS< 3.101.1-150000.3.117.1 | < 3.90.2-150000.3.108.1
  • mozilla-nss&distro=SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS< 3.101.1-150000.3.117.1 | < 3.90.2-150000.3.108.1
  • mozilla-nss&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 3.101.2-150400.3.48.1 | < 3.90.2-150400.3.39.1
  • mozilla-nss&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 3.101.2-150400.3.48.1 | < 3.90.2-150400.3.39.1
Redhat20 products
  • nspr< 0:4.35.0-4.el9_2 | < 0:4.35.0-4.el9_3
  • nspr-debuginfo< 0:4.35.0-4.el9_2 | < 0:4.35.0-4.el9_3
  • nspr-devel< 0:4.35.0-4.el9_2 | < 0:4.35.0-4.el9_3
  • nss< 0:3.90.0-4.el8_8 | < 0:3.90.0-4.el8_9 | < 0:3.79.0-12.el8_6 | < 0:3.90.0-4.el9_2 | < 0:3.90.0-4.el9_3
  • nss-debuginfo< 0:3.90.0-4.el8_8 | < 0:3.90.0-4.el8_9 | < 0:3.79.0-12.el8_6 | < 0:3.90.0-4.el9_2 | < 0:3.90.0-4.el9_3
Ubuntu9 products
  • firefox< 124.0+build1-0ubuntu0.20.04.1
  • mozjs102All versions (No fix recorded)
  • mozjs38All versions (No fix recorded)
  • mozjs52All versions (No fix recorded)
  • mozjs68All versions (No fix recorded)
Opensuse6 products
  • mozilla-nss&distro=openSUSE Leap 15.5< 3.101.2-150400.3.48.1 | < 3.90.2-150400.3.39.1
  • mozilla-nss&distro=openSUSE Leap 15.6< 3.101.2-150400.3.48.1
  • mozilla-nss&distro=openSUSE Leap Micro 5.3< 3.90.2-150400.3.39.1
  • mozilla-nss&distro=openSUSE Leap Micro 5.4< 3.90.2-150400.3.39.1
  • mozilla-nss&distro=openSUSE Leap Micro 5.5< 3.101.2-150400.3.48.1
Debian4 products
  • firefox-esr< 115.9.0esr-1~deb12u1 | < 115.9.0esr-1
  • nssAll versions (No fix recorded) | < 2:3.98-1
  • thunderbird< 1:115.9.0-1~deb12u1 | < 1:115.9.0-1
  • debian_linuxEOL10.0
Mozilla3 products
Alpine1 product
  • nss< 3.98-r0
Chainguard1 product
  • firefox-esr< 115.9.1-r0

8 vendors · 68 products

References

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