CURL-CVE-2016-8621

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Source
https://curl.se/docs/CVE-2016-8621.html
Import Source
https://curl.se/docs/CURL-CVE-2016-8621.json
JSON Data
https://api.test.osv.dev/v1/vulns/CURL-CVE-2016-8621
Aliases
Published
2016-11-02T08:00:00Z
Modified
2026-05-29T05:40:19.969820Z
Summary
curl_getdate read out of bounds
Details

The curl_getdate converts a given date string into a numerical timestamp and it supports a range of different formats and possibilities to express a date and time. The underlying date parsing function is also used internally when parsing for example HTTP cookies (possibly received from remote servers) and it can be used when doing conditional HTTP requests.

The date parser function uses the libc sscanf() function at two places, with the parsing strings %02d:%02d and %02d:%02d:%02d. The intent being that it would parse either a string with HH:MM (two digits colon two digits) or HH:MM:SS (two digits colon two digits colon two digits). If instead the piece of time that was sent in had the final digit cut off, thus ending with a single-digit, the date parser code would advance its read pointer one byte too much and end up reading out of bounds.

Database specific 
{
    "affects": "both",
    "CWE": {
        "id": "CWE-126",
        "desc": "Buffer Over-read"
    },
    "severity": "Medium",
    "package": "curl",
    "URL": "https://curl.se/docs/CVE-2016-8621.json",
    "last_affected": "7.50.3",
    "www": "https://curl.se/docs/CVE-2016-8621.html"
}
References
Credits
    • Luật Nguyễn - FINDER
    • Daniel Stenberg - REMEDIATION_DEVELOPER

Affected packages

Git / github.com/curl/curl.git

Affected ranges

Type
SEMVER
Events
Introduced
7.12.2
Fixed
7.51.0
Type
GIT
Repo
https://github.com/curl/curl.git
Events
Introduced
f6433211ae9afb30ec461e6633dafc6d8c77eaa9
Fixed
96a80b5a262fb6dd2ddcea7987296f3b9a405618

Affected versions

7.*
7.12.2
7.12.3
7.13.0
7.13.1
7.13.2
7.14.0
7.14.1
7.15.0
7.15.1
7.15.2
7.15.3
7.15.4
7.15.5
7.16.0
7.16.1
7.16.2
7.16.3
7.16.4
7.17.0
7.17.1
7.18.0
7.18.1
7.18.2
7.19.0
7.19.1
7.19.2
7.19.3
7.19.4
7.19.5
7.19.6
7.19.7
7.20.0
7.20.1
7.21.0
7.21.1
7.21.2
7.21.3
7.21.4
7.21.5
7.21.6
7.21.7
7.22.0
7.23.0
7.23.1
7.24.0
7.25.0
7.26.0
7.27.0
7.28.0
7.28.1
7.29.0
7.30.0
7.31.0
7.32.0
7.33.0
7.34.0
7.35.0
7.36.0
7.37.0
7.37.1
7.38.0
7.39.0
7.40.0
7.41.0
7.42.0
7.42.1
7.43.0
7.44.0
7.45.0
7.46.0
7.47.0
7.47.1
7.48.0
7.49.0
7.49.1
7.50.0
7.50.1
7.50.2
7.50.3
Other
before_ftp_statemachine
curl-7_12_2
curl-7_12_3
curl-7_13_0
curl-7_13_1
curl-7_13_2
curl-7_14_0
curl-7_14_1
curl-7_15_0
curl-7_15_1
curl-7_15_2
curl-7_15_3
curl-7_15_4
curl-7_15_5
curl-7_15_6-prepipeline
curl-7_16_0
curl-7_16_1
curl-7_16_2
curl-7_16_3
curl-7_16_4
curl-7_17_0
curl-7_17_0-preldapfix
curl-7_17_1
curl-7_18_0
curl-7_18_1
curl-7_18_2
curl-7_19_0
curl-7_19_1
curl-7_19_2
curl-7_19_3
curl-7_19_4
curl-7_19_5
curl-7_19_6
curl-7_19_7
curl-7_20_0
curl-7_20_1
curl-7_21_0
curl-7_21_1
curl-7_21_2
curl-7_21_3
curl-7_21_4
curl-7_21_5
curl-7_21_6
curl-7_21_7
curl-7_22_0
curl-7_23_0
curl-7_23_1
curl-7_24_0
curl-7_25_0
curl-7_26_0
curl-7_27_0
curl-7_28_0
curl-7_28_1
curl-7_29_0
curl-7_30_0
curl-7_31_0
curl-7_32_0
curl-7_33_0
curl-7_34_0
curl-7_35_0
curl-7_36_0
curl-7_37_0
curl-7_37_1
curl-7_38_0
curl-7_39_0
curl-7_40_0
curl-7_41_0
curl-7_42_0
curl-7_42_1
curl-7_43_0
curl-7_44_0
curl-7_45_0
curl-7_46_0
curl-7_47_0
curl-7_47_1
curl-7_48_0
curl-7_49_0
curl-7_49_1
curl-7_50_0
curl-7_50_1
curl-7_50_2
curl-7_50_3

Database specific

vanir_signatures 
[
    {
        "digest": {
            "line_hashes": [
                "308577960542575037336868169102471521462",
                "13161730274141808989736688002385614941",
                "44441430585724749763685529690364700466",
                "323839820629539738068912297904044425666",
                "36121451579133397473220353944741700271",
                "36610642193482551647895047129290017031",
                "13113538613352150690506112937236587324",
                "181845228133792140107326450073547106629",
                "249811738674333916540410957268716363404",
                "288036674292455837486088679176124886884",
                "22607342827772394773839602858200661227",
                "203700620895711925919015838943376886808"
            ],
            "threshold": 0.9
        },
        "id": "CURL-CVE-2016-8621-16ef9308",
        "signature_version": "v1",
        "target": {
            "file": "lib/parsedate.c"
        },
        "deprecated": false,
        "signature_type": "Line",
        "source": "https://github.com/curl/curl.git/commit/96a80b5a262fb6dd2ddcea7987296f3b9a405618"
    },
    {
        "digest": {
            "function_hash": "60763901367296310916067366455512337471",
            "length": 3177.0
        },
        "id": "CURL-CVE-2016-8621-31fc78b9",
        "signature_version": "v1",
        "target": {
            "file": "lib/parsedate.c",
            "function": "parsedate"
        },
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/curl/curl.git/commit/96a80b5a262fb6dd2ddcea7987296f3b9a405618"
    },
    {
        "digest": {
            "line_hashes": [
                "4482088587697448749067670462751564421",
                "172707527782089805535023746377141888104",
                "95266190109046364501215603283468073662",
                "90236223273100018790390633626959698097",
                "67830574022030266779563003670359755773"
            ],
            "threshold": 0.9
        },
        "id": "CURL-CVE-2016-8621-5f8cf6f0",
        "signature_version": "v1",
        "target": {
            "file": "tests/libtest/lib517.c"
        },
        "deprecated": false,
        "signature_type": "Line",
        "source": "https://github.com/curl/curl.git/commit/96a80b5a262fb6dd2ddcea7987296f3b9a405618"
    }
]
source 
"https://curl.se/docs/CURL-CVE-2016-8621.json"
vanir_signatures_modified 
"2026-05-29T05:40:19Z"