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CVE-2007-6277

Multiple buffer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user...

9.3 HighFix available

Multiple buffer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user-assisted remote attackers to execute arbitrary code via large (1) Metadata Block Size, (2) VORBIS Comment String Size, (3) Picture Metadata MIME-TYPE Size, (4) Picture Description Size, (5) Picture Data Length, (6) Padding Length, and (7) PICTURE Metadata width and height values in a .FLAC file, which result in a heap-based overflow; and large (8) VORBIS Comment String Size Length, (9) Picture MIME-Type, (10) Picture MIME-Type URL, and (11) Picture Description Length values in a .FLAC file, which result in a stack-based overflow. NOTE: some of these issues may overlap CVE-2007-4619.

Exploit likelihood

6.74%Down 1.5 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used9.3

Multiple buffer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user-assisted remote attackers to execute arbitrary code via large (1) Metadata Block Size, (2) VORBIS Comment String Size, (3) Picture Metadata MIME-TYPE Size, (4) Picture Description Size, (5) Picture Data Length, (6) Padding Length, and (7) PICTURE Metadata width and height values in a .FLAC file, which result in a heap-based overflow; and large (8) VORBIS Comment String Size Length, (9) Picture MIME-Type, (10) Picture MIME-Type URL, and (11) Picture Description Length values in a .FLAC file, which result in a stack-based overflow. NOTE: some of these issues may overlap CVE-2007-4619.

Record
CVE-2007-6277
CVSS 2.0
9.3 HighAV:N/AC:M/Au:N/C:C/I:C/A:C
Weakness
CWE-119
Updated
2026-11-02
CVE ListNo score

Multiple buffer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user-assisted remote attackers to execute arbitrary code via large (1) Metadata Block Size, (2) VORBIS Comment String Size, (3) Picture Metadata MIME-TYPE Size, (4) Picture Description Size, (5) Picture Data Length, (6) Padding Length, and (7) PICTURE Metadata width and height values in a .FLAC file, which result in a heap-based overflow; and large (8) VORBIS Comment String Size Length, (9) Picture MIME-Type, (10) Picture MIME-Type URL, and (11) Picture Description Length values in a .FLAC file, which result in a stack-based overflow. NOTE: some of these issues may overlap CVE-2007-4619.

Record
CVE-2007-6277
Updated
2026-11-02
EUVDEUVD-2007-6245No score

Multiple buffer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user-assisted remote attackers to execute arbitrary code via large (1) Metadata Block Size, (2) VORBIS Comment String Size, (3) Picture Metadata MIME-TYPE Size, (4) Picture Description Size, (5) Picture Data Length, (6) Padding Length, and (7) PICTURE Metadata width and height values in a .FLAC file, which result in a heap-based overflow; and large (8) VORBIS Comment String Size Length, (9) Picture MIME-Type, (10) Picture MIME-Type URL, and (11) Picture Description Length values in a .FLAC file, which result in a stack-based overflow. NOTE: some of these issues may overlap CVE-2007-4619.

Record
EUVD-2007-6245
Updated
2026-11-03
GitHub AdvisoriesGHSA-5955-gqmh-73gjNo score

Multiple buffer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user...

Multiple buffer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user-assisted remote attackers to execute arbitrary code via large (1) Metadata Block Size, (2) VORBIS Comment String Size, (3) Picture Metadata MIME-TYPE Size, (4) Picture Description Size, (5) Picture Data Length, (6) Padding Length, and (7) PICTURE Metadata width and height values in a .FLAC file, which result in a heap-based overflow; and large (8) VORBIS Comment String Size Length, (9) Picture MIME-Type, (10) Picture MIME-Type URL, and (11) Picture Description Length values in a .FLAC file, which result in a stack-based overflow. NOTE: some of these issues may overlap CVE-2007-4619.

Record
GHSA-5955-gqmh-73gj
Weakness
CWE-119
Updated
2026-11-02
OSVNo score

Multiple buffer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user-assisted remote attackers to execute arbitrary code via large (1) Metadata Block Size, (2) VORBIS Comment String Size, (3) Picture Metadata MIME-TYPE Size, (4) Picture Description Size, (5) Picture Data Length, (6) Padding Length, and (7) PICTURE Metadata width and height values in a .FLAC file, which result in a heap-based overflow; and large (8) VORBIS Comment String Size Length, (9) Picture MIME-Type, (10) Picture MIME-Type URL, and (11) Picture Description Length values in a .FLAC file, which result in a stack-based overflow. NOTE: some of these issues may overlap CVE-2007-4619.

Record
CVE-2007-6277
Updated
2026-11-02
OSVDEBIAN-CVE-2007-6277No score

Multiple buffer overflows in Free Lossless Audio Codec (FLAC) libFLAC before 1.2.1 allow user-assisted remote attackers to execute arbitrary code via large (1) Metadata Block Size, (2) VORBIS Comment String Size, (3) Picture Metadata MIME-TYPE Size, (4) Picture Description Size, (5) Picture Data Length, (6) Padding Length, and (7) PICTURE Metadata width and height values in a .FLAC file, which result in a heap-based overflow; and large (8) VORBIS Comment String Size Length, (9) Picture MIME-Type, (10) Picture MIME-Type URL, and (11) Picture Description Length values in a .FLAC file, which result in a stack-based overflow. NOTE: some of these issues may overlap CVE-2007-4619.

Record
DEBIAN-CVE-2007-6277
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
flac
Debian:12
before 1.2.1-1
1.2.1-1
flac
Debian:13
before 1.2.1-1
1.2.1-1
flac
Debian:14
before 1.2.1-1
1.2.1-1
flac
Debian:4.0
From an advisory covering 2 CVEs
before 1.1.2-8, plus listed versions
1.1.2-6
1.1.2-8
flac
Debian:3.1
From an advisory covering 2 CVEs
before 1.1.1-5sarge1, plus listed versions
1.1.1-5
1.1.1-5sarge1
flac
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac-debuginfo
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac-devel
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
xmms-flac
Red Hat:enterprise_linux:4::as
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
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Affected packages
PackageAffectedFixed
flac-debuginfo
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac-devel
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
xmms-flac
Red Hat:enterprise_linux:4::desktop
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac-debuginfo
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac-devel
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
xmms-flac
Red Hat:enterprise_linux:4::es
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac-debuginfo
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac-devel
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
xmms-flac
Red Hat:enterprise_linux:4::ws
From an advisory covering 2 CVEs
before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac
Red Hat:enterprise_linux:5::client_workstation
From an advisory covering 2 CVEs
before 0:1.1.2-28.el5_0.1
0:1.1.2-28.el5_0.1
flac-debuginfo
Red Hat:enterprise_linux:5::client_workstation
From an advisory covering 2 CVEs
before 0:1.1.2-28.el5_0.1
0:1.1.2-28.el5_0.1
flac-devel
Red Hat:enterprise_linux:5::client_workstation
From an advisory covering 2 CVEs
before 0:1.1.2-28.el5_0.1
0:1.1.2-28.el5_0.1
flac
Red Hat:enterprise_linux:5::client
From an advisory covering 2 CVEs
before 0:1.1.2-28.el5_0.1
0:1.1.2-28.el5_0.1
flac-debuginfo
Red Hat:enterprise_linux:5::client
From an advisory covering 2 CVEs
before 0:1.1.2-28.el5_0.1
0:1.1.2-28.el5_0.1
flac
Red Hat:enterprise_linux:5::server
From an advisory covering 2 CVEs
before 0:1.1.2-28.el5_0.1
0:1.1.2-28.el5_0.1
flac-debuginfo
Red Hat:enterprise_linux:5::server
From an advisory covering 2 CVEs
before 0:1.1.2-28.el5_0.1
0:1.1.2-28.el5_0.1
flac-devel
Red Hat:enterprise_linux:5::server
From an advisory covering 2 CVEs
before 0:1.1.2-28.el5_0.1
0:1.1.2-28.el5_0.1

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
aliases
affected, aliases, facts, references, titleGitHub Advisories, OSV
first indexedCVE List, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2007-6277 is a high vulnerability (CVSS 9.3) in Flac Libflac, published December 7, 2007. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 6.74%, the 94th percentile. Fixed in flac 1.2.1-1.

References

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