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HistoryOct 11, 2023 - 7:33 p.m.

[SECURITY] [DLA 3614-1] python3.7 security update

2023-10-1119:33:59
lists.debian.org
10
cve
xml external entity
use-after-free
tls handshake
python3.7
constant-time-defeating
denial-of-service
security update
debian 10

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

7.8

Confidence

Low

EPSS

0.001

Percentile

48.0%


Debian LTS Advisory DLA-3614-1 [email protected]
https://www.debian.org/lts/security/ Sean Whitton
October 11, 2023 https://wiki.debian.org/LTS

Package : python3.7
Version : 3.7.3-2+deb10u6
CVE ID : CVE-2022-48560 CVE-2022-48564 CVE-2022-48565 CVE-2022-48566
CVE-2023-40217

Several vulnerabilities were discovered in Python 3.7.

CVE-2022-48560

A use-after-free problem was found in the heappushpop function in
the heapq module.

CVE-2022-48564

A potential denial-of-service vulnerability was discovered in the
read_ints function used when processing certain malformed Apple
Property List files in binary format.

CVE-2022-48565

An XML External Entity (XXE) issue was discovered.  In order to
avoid possible vulnerabilities, the plistlib module no longer
accepts entity declarations in XML plist files.

CVE-2022-48566

Possible constant-time-defeating compiler optimisations were
discovered in the accumulator variable in hmac.compare_digest.

CVE-2023-40217

It was discovered that it might be possible to bypass some of the
protections implemented by the TLS handshake in the ssl.SSLSocket
class.  For example, unauthenticated data might be read by a program
expecting data authenticated by client certificates.

For Debian 10 buster, these problems have been fixed in version
3.7.3-2+deb10u6.

We recommend that you upgrade your python3.7 packages.

For the detailed security status of python3.7 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/python3.7

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
signature.asc
Description: PGP signature

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

7.8

Confidence

Low

EPSS

0.001

Percentile

48.0%