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debianDebianDEBIAN:DSA-4786-1:E5BFD
HistoryNov 08, 2020 - 3:03 p.m.

[SECURITY] [DSA 4786-1] libexif security update

2020-11-0815:03:34
lists.debian.org
17
libexif
buffer overflow
debian
cve-2020-0452

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.5

Confidence

High

EPSS

0.009

Percentile

82.9%


Debian Security Advisory DSA-4786-1 [email protected]
https://www.debian.org/security/ Moritz Muehlenhoff
November 08, 2020 https://www.debian.org/security/faq


Package : libexif
CVE ID : CVE-2020-0452

It was discovered that a boundary check in libexif, a library to parse
EXIF files, could be optimised away by the compiler, resulting in
a potential buffer overflow.

For the stable distribution (buster), this problem has been fixed in
version 0.6.21-5.1+deb10u5.

We recommend that you upgrade your libexif packages.

For the detailed security status of libexif please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libexif

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: [email protected]

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.5

Confidence

High

EPSS

0.009

Percentile

82.9%