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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 used 9.3

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 List No 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-2007-6245 No 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-73gj No 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
OSV No 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-2007-6277 No 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
 before 1.1.2-8, plus listed versions
1.1.2-6
1.1.2-8
flac
Debian:3.1
 before 1.1.1-5sarge1, plus listed versions
1.1.1-5
1.1.1-5sarge1
flac
Red Hat:enterprise_linux:4::as
 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
 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
 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
 before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac
Red Hat:enterprise_linux:4::desktop
 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
 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
 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
 before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac
Red Hat:enterprise_linux:4::es
 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
 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
 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
 before 0:1.1.0-7.el4_5.2
0:1.1.0-7.el4_5.2
flac
Red Hat:enterprise_linux:4::ws
 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
 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
 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
 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
 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
 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
 before 0:1.1.2-28.el5_0.1
0:1.1.2-28.el5_0.1
flac
Red Hat:enterprise_linux:5::client
 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
 before 0:1.1.2-28.el5_0.1
0:1.1.2-28.el5_0.1
flac
Red Hat:enterprise_linux:5::server
 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
 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
 before 0:1.1.2-28.el5_0.1
0:1.1.2-28.el5_0.1

History

History
RecordedChangedSources
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 93rd percentile. Fixed in flac 1.2.1-1.

References

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