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Vulnerability details: VCID-8uvb-j5w5-aaar
Vulnerability ID VCID-8uvb-j5w5-aaar
Aliases CVE-2017-18269
Summary An SSE2-optimized memmove implementation for i386 in sysdeps/i386/i686/multiarch/memcpy-sse2-unaligned.S in the GNU C Library (aka glibc or libc6) 2.21 through 2.27 does not correctly perform the overlapping memory check if the source memory range spans the middle of the address space, resulting in corrupt data being produced by the copy operation. This may disclose information to context-dependent attackers, or result in a denial of service, or, possibly, code execution.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-18269.html
cvssv3 7.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-18269.json
epss 0.00376 https://api.first.org/data/v1/epss?cve=CVE-2017-18269
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epss 0.03684 https://api.first.org/data/v1/epss?cve=CVE-2017-18269
rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1580924
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18269
cvssv3 5.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
generic_textual Medium https://github.com/fingolfin/memmove-bug
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2017-18269
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2017-18269
generic_textual Low https://ubuntu.com/security/notices/USN-4416-1
generic_textual Low https://usn.ubuntu.com/usn/usn-4416-1
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-18269.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-18269.json
https://api.first.org/data/v1/epss?cve=CVE-2017-18269
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18269
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/fingolfin/memmove-bug
https://security.netapp.com/advisory/ntap-20190329-0001/
https://security.netapp.com/advisory/ntap-20190401-0001/
https://sourceware.org/bugzilla/show_bug.cgi?id=22644
https://sourceware.org/git/gitweb.cgi?p=glibc.git%3Bh=cd66c0e584c6d692bc8347b5e72723d02b8a8ada
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=cd66c0e584c6d692bc8347b5e72723d02b8a8ada
https://ubuntu.com/security/notices/USN-4416-1
https://usn.ubuntu.com/4416-1/
https://usn.ubuntu.com/usn/usn-4416-1
1580924 https://bugzilla.redhat.com/show_bug.cgi?id=1580924
CVE-2017-18269 https://nvd.nist.gov/vuln/detail/CVE-2017-18269
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-18269.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2017-18269
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2017-18269
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.58176
EPSS Score 0.00376
Published At April 18, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.