5.3

CVE-2021-28116: debian debian_linux Out-of-bounds Read

CVSS: 5.3v3.1MediumModified
AliasesALPINE-CVE-2021-28116MGASA-2021-0499SUSE-SU-2021:3334-1
Published 09-03-2021Last modified 03-08-2024
Open JSON

Vulnerability summary

CVE-2021-28116 is a medium (CVSS 5.3) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 12.95% chance of exploitation in the next 30 days, higher than 96.2% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
5.3/10
010
Medium · v3.1 (NVD)
EPSS score
12.95%
0%100%
Medium · 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
DSA-5171-1

Timeline

  1. 09-03-2021
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.

CVSS metrics

7 scores · 6 sources · 2 versions

EPSS trend

Probability

12.95%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

0.00 pp

From 12.95% on 19-09-2026

19-09-202619-10-2026
EPSS score
12.95%

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

Redhat7 products
  • libecap< 0:1.0.1-2.module+el8.1.0+4044+36416a77
  • libecap-debuginfo< 0:1.0.1-2.module+el8.1.0+4044+36416a77
  • libecap-debugsource< 0:1.0.1-2.module+el8.1.0+4044+36416a77
  • libecap-devel< 0:1.0.1-2.module+el8.1.0+4044+36416a77
  • squid< 7:4.15-3.module+el8.6.0+14176+9782b8ab
Suse4 products
  • squid&distro=SUSE Linux Enterprise Module for Server Applications 15 SP2< 4.17-5.29.1
  • squid&distro=SUSE Linux Enterprise Module for Server Applications 15 SP3< 4.17-5.29.1
  • squid&distro=SUSE Linux Enterprise Server 12 SP5< 4.17-4.21.1
  • squid&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP5< 4.17-4.21.1
Opensuse3 products
  • squid&distro=openSUSE Leap 15.2< 4.17-lp152.2.12.1
  • squid&distro=openSUSE Leap 15.3< 4.17-5.29.1
  • squid&distro=openSUSE Tumbleweed< 5.2-1.1
Debian2 products
Ubuntu2 products
  • squid< 4.13-10ubuntu5 | < 4.10-1ubuntu1.5
  • squid3All versions (No fix recorded) | < 3.5.27-1ubuntu1.12
Alpine1 product
  • squid≥ 5.0, < 4.17-r0 | ≥ 5.0, < 5.0.6-r1 | ≥ 5.0, < 5.2-r0
Fedoraproject1 product
Mageia1 product
  • squid< 4.17-1.mga8
Squid-cache1 product
  • squid≤ 4.14 | ≥ 5.0, ≤ 5.0.5

9 vendors · 22 products

References

32 links
Show all 32 references