CVE-2021-28116

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Source
https://cve.org/CVERecord?id=CVE-2021-28116
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-28116.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-28116
Downstream
Related
Published
2021-03-09T22:15:12.880Z
Modified
2026-04-16T00:03:53.648419577Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "unresolved_ranges": [
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "10.0"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "11.0"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "cpe": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
            "extracted_events": [
                {
                    "last_affected": "34"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/squid-cache/squid

Affected ranges

Type
GIT
Repo
https://github.com/squid-cache/squid
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
fa47a3bc4d382e28e7235d08750401b910e4b13a
Last affected
a115b4597afa7d6d9efa7cc83d001a1f7bcc17e2
Last affected
0f67e2aac4a27d0c5ffbfa1dcd89d8abbc7175a7
Database specific 
{
    "source": "CPE_FIELD",
    "cpe": [
        "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
        "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.14"
        },
        {
            "introduced": "5.0"
        },
        {
            "last_affected": "5.0.5"
        },
        {
            "last_affected": "33"
        }
    ]
}

Affected versions

Other
HISTORIC_RELEASES
M-staged-PR161
M-staged-PR164
M-staged-PR170
M-staged-PR176
M-staged-PR179
M-staged-PR181
M-staged-PR182
M-staged-PR186
M-staged-PR189
M-staged-PR193
M-staged-PR195
M-staged-PR196
M-staged-PR198
M-staged-PR199
M-staged-PR200
M-staged-PR202
M-staged-PR206
M-staged-PR208
M-staged-PR209
M-staged-PR210
M-staged-PR218
M-staged-PR220
M-staged-PR221
M-staged-PR225
M-staged-PR227
M-staged-PR229
M-staged-PR230
M-staged-PR235
M-staged-PR237
M-staged-PR238
M-staged-PR239
M-staged-PR241
M-staged-PR242
M-staged-PR252
M-staged-PR255
M-staged-PR258
M-staged-PR264
M-staged-PR266
M-staged-PR267
M-staged-PR268
M-staged-PR274
M-staged-PR276
M-staged-PR293
M-staged-PR294
M-staged-PR295
M-staged-PR299
M-staged-PR306
M-staged-PR314
M-staged-PR319
M-staged-PR330
M-staged-PR342
M-staged-PR345
M-staged-PR348
M-staged-PR351
M-staged-PR359
M-staged-PR364
M-staged-PR365
M-staged-PR366
M-staged-PR370
M-staged-PR372
M-staged-PR373
M-staged-PR375
M-staged-PR376
SQUID_3_0_PRE1
SQUID_3_0_PRE2
SQUID_3_0_PRE3
SQUID_3_0_PRE4
SQUID_3_0_PRE5
SQUID_3_0_PRE6
SQUID_3_0_PRE7
SQUID_3_0_RC1
SQUID_3_5_27
SQUID_4_0_1
SQUID_4_0_10
SQUID_4_0_11
SQUID_4_0_12
SQUID_4_0_13
SQUID_4_0_14
SQUID_4_0_15
SQUID_4_0_16
SQUID_4_0_17
SQUID_4_0_18
SQUID_4_0_19
SQUID_4_0_2
SQUID_4_0_20
SQUID_4_0_21
SQUID_4_0_22
SQUID_4_0_23
SQUID_4_0_24
SQUID_4_0_25
SQUID_4_0_3
SQUID_4_0_4
SQUID_4_0_5
SQUID_4_0_6
SQUID_4_0_7
SQUID_4_0_8
SQUID_4_0_9
SQUID_4_1
SQUID_4_10
SQUID_4_11
SQUID_4_12
SQUID_4_13
SQUID_4_14
SQUID_4_2
SQUID_4_3
SQUID_4_4
SQUID_4_5
SQUID_4_6
SQUID_4_7
SQUID_4_8
SQUID_4_9
SQUID_5_0_1
SQUID_5_0_2
SQUID_5_0_3
SQUID_5_0_4
SQUID_5_0_5
take00

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-28116.json"