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alsa-2024:2447
Vulnerability from osv_almalinux
Published
2024-04-30 00:00
Modified
2024-05-07 14:58
Summary
Low: openssl and openssl-fips-provider security update
Details
OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL) and Transport Layer Security (TLS) protocols, as well as a full-strength general-purpose cryptography library.
Security Fix(es):
- openssl: AES-SIV cipher implementation contains a bug that causes it to ignore empty associated data entries (CVE-2023-2975)
- openssl: Excessive time spent checking DH keys and parameters (CVE-2023-3446)
- OpenSSL: Excessive time spent checking DH q parameter value (CVE-2023-3817)
- openssl: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow (CVE-2023-5678)
- openssl: POLY1305 MAC implementation corrupts vector registers on PowerPC (CVE-2023-6129)
- openssl: Excessive time spent checking invalid RSA public keys (CVE-2023-6237)
- openssl: denial of service via null dereference (CVE-2024-0727)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.
References
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"modified": "2024-05-07T14:58:27Z",
"published": "2024-04-30T00:00:00Z",
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],
"summary": "Low: openssl and openssl-fips-provider security update"
}
CVE-2024-0727 (GCVE-0-2024-0727)
Vulnerability from cvelistv5 – Published: 2024-01-26 08:57 – Updated: 2025-11-03 21:51
VLAI?
EPSS
Title
PKCS12 Decoding crashes
Summary
Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL
to crash leading to a potential Denial of Service attack
Impact summary: Applications loading files in the PKCS12 format from untrusted
sources might terminate abruptly.
A file in PKCS12 format can contain certificates and keys and may come from an
untrusted source. The PKCS12 specification allows certain fields to be NULL, but
OpenSSL does not correctly check for this case. This can lead to a NULL pointer
dereference that results in OpenSSL crashing. If an application processes PKCS12
files from an untrusted source using the OpenSSL APIs then that application will
be vulnerable to this issue.
OpenSSL APIs that are vulnerable to this are: PKCS12_parse(),
PKCS12_unpack_p7data(), PKCS12_unpack_p7encdata(), PKCS12_unpack_authsafes()
and PKCS12_newpass().
We have also fixed a similar issue in SMIME_write_PKCS7(). However since this
function is related to writing data we do not consider it security significant.
The FIPS modules in 3.2, 3.1 and 3.0 are not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-476 - NULL Pointer Dereference
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
Date Public ?
2024-01-25 00:00
Credits
Bahaa Naamneh (Crosspoint Labs)
Matt Caswell
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CVE-2023-2975 (GCVE-0-2023-2975)
Vulnerability from cvelistv5 – Published: 2023-07-14 11:16 – Updated: 2025-04-23 16:20
VLAI?
EPSS
Title
AES-SIV implementation ignores empty associated data entries
Summary
Issue summary: The AES-SIV cipher implementation contains a bug that causes
it to ignore empty associated data entries which are unauthenticated as
a consequence.
Impact summary: Applications that use the AES-SIV algorithm and want to
authenticate empty data entries as associated data can be misled by removing,
adding or reordering such empty entries as these are ignored by the OpenSSL
implementation. We are currently unaware of any such applications.
The AES-SIV algorithm allows for authentication of multiple associated
data entries along with the encryption. To authenticate empty data the
application has to call EVP_EncryptUpdate() (or EVP_CipherUpdate()) with
NULL pointer as the output buffer and 0 as the input buffer length.
The AES-SIV implementation in OpenSSL just returns success for such a call
instead of performing the associated data authentication operation.
The empty data thus will not be authenticated.
As this issue does not affect non-empty associated data authentication and
we expect it to be rare for an application to use empty associated data
entries this is qualified as Low severity issue.
Severity ?
No CVSS data available.
CWE
- CWE-354 - Improper Validation of Integrity Check Value
Assigner
References
| URL | Tags | |
|---|---|---|
Impacted products
Date Public ?
2023-07-07 00:00
Credits
Juerg Wullschleger (Google)
Tomas Mraz
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CVE-2023-6237 (GCVE-0-2023-6237)
Vulnerability from cvelistv5 – Published: 2024-04-25 06:27 – Updated: 2024-11-01 14:28
VLAI?
EPSS
Title
Excessive time spent checking invalid RSA public keys
Summary
Issue summary: Checking excessively long invalid RSA public keys may take
a long time.
Impact summary: Applications that use the function EVP_PKEY_public_check()
to check RSA public keys may experience long delays. Where the key that
is being checked has been obtained from an untrusted source this may lead
to a Denial of Service.
When function EVP_PKEY_public_check() is called on RSA public keys,
a computation is done to confirm that the RSA modulus, n, is composite.
For valid RSA keys, n is a product of two or more large primes and this
computation completes quickly. However, if n is an overly large prime,
then this computation would take a long time.
An application that calls EVP_PKEY_public_check() and supplies an RSA key
obtained from an untrusted source could be vulnerable to a Denial of Service
attack.
The function EVP_PKEY_public_check() is not called from other OpenSSL
functions however it is called from the OpenSSL pkey command line
application. For that reason that application is also vulnerable if used
with the '-pubin' and '-check' options on untrusted data.
The OpenSSL SSL/TLS implementation is not affected by this issue.
The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
Impacted products
Date Public ?
2024-01-15 00:00
Credits
OSS-Fuzz
Tomas Mraz
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CVE-2023-6129 (GCVE-0-2023-6129)
Vulnerability from cvelistv5 – Published: 2024-01-09 16:36 – Updated: 2025-06-20 15:28
VLAI?
EPSS
Title
POLY1305 MAC implementation corrupts vector registers on PowerPC
Summary
Issue summary: The POLY1305 MAC (message authentication code) implementation
contains a bug that might corrupt the internal state of applications running
on PowerPC CPU based platforms if the CPU provides vector instructions.
Impact summary: If an attacker can influence whether the POLY1305 MAC
algorithm is used, the application state might be corrupted with various
application dependent consequences.
The POLY1305 MAC (message authentication code) implementation in OpenSSL for
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than they are saved. Thus the contents of some of these vector registers
are corrupted when returning to the caller. The vulnerable code is used only
on newer PowerPC processors supporting the PowerISA 2.07 instructions.
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depend on the contents of non-volatile XMM registers at all, to the worst
consequences, where the attacker could get complete control of the application
process. However unless the compiler uses the vector registers for storing
pointers, the most likely consequence, if any, would be an incorrect result
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service.
The POLY1305 MAC algorithm is most frequently used as part of the
CHACHA20-POLY1305 AEAD (authenticated encryption with associated data)
algorithm. The most common usage of this AEAD cipher is with TLS protocol
versions 1.2 and 1.3. If this cipher is enabled on the server a malicious
client can influence whether this AEAD cipher is used. This implies that
TLS server applications using OpenSSL can be potentially impacted. However
we are currently not aware of any concrete application that would be affected
by this issue therefore we consider this a Low severity security issue.
Severity ?
No CVSS data available.
CWE
- CWE-440 - Expected Behavior Violation
Assigner
References
Impacted products
Date Public ?
2024-01-09 00:00
Credits
Sverker Eriksson
Rohan McLure
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CVE-2023-5678 (GCVE-0-2023-5678)
Vulnerability from cvelistv5 – Published: 2023-11-06 15:47 – Updated: 2025-12-02 19:42
VLAI?
EPSS
Title
Excessive time spent in DH check / generation with large Q parameter value
Summary
Issue summary: Generating excessively long X9.42 DH keys or checking
excessively long X9.42 DH keys or parameters may be very slow.
Impact summary: Applications that use the functions DH_generate_key() to
generate an X9.42 DH key may experience long delays. Likewise, applications
that use DH_check_pub_key(), DH_check_pub_key_ex() or EVP_PKEY_public_check()
to check an X9.42 DH key or X9.42 DH parameters may experience long delays.
Where the key or parameters that are being checked have been obtained from
an untrusted source this may lead to a Denial of Service.
While DH_check() performs all the necessary checks (as of CVE-2023-3817),
DH_check_pub_key() doesn't make any of these checks, and is therefore
vulnerable for excessively large P and Q parameters.
Likewise, while DH_generate_key() performs a check for an excessively large
P, it doesn't check for an excessively large Q.
An application that calls DH_generate_key() or DH_check_pub_key() and
supplies a key or parameters obtained from an untrusted source could be
vulnerable to a Denial of Service attack.
DH_generate_key() and DH_check_pub_key() are also called by a number of
other OpenSSL functions. An application calling any of those other
functions may similarly be affected. The other functions affected by this
are DH_check_pub_key_ex(), EVP_PKEY_public_check(), and EVP_PKEY_generate().
Also vulnerable are the OpenSSL pkey command line application when using the
"-pubcheck" option, as well as the OpenSSL genpkey command line application.
The OpenSSL SSL/TLS implementation is not affected by this issue.
The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
| URL | Tags | |
|---|---|---|
Impacted products
Date Public ?
2023-11-06 00:00
Credits
David Benjamin (Google)
Richard Levitte
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CVE-2023-3817 (GCVE-0-2023-3817)
Vulnerability from cvelistv5 – Published: 2023-07-31 15:34 – Updated: 2025-05-05 15:53
VLAI?
EPSS
Title
Excessive time spent checking DH q parameter value
Summary
Issue summary: Checking excessively long DH keys or parameters may be very slow.
Impact summary: Applications that use the functions DH_check(), DH_check_ex()
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Severity ?
No CVSS data available.
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
| URL | Tags | |
|---|---|---|
Impacted products
Date Public ?
2023-07-31 00:00
Credits
Bernd Edlinger
Tomas Mraz
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CVE-2023-3446 (GCVE-0-2023-3446)
Vulnerability from cvelistv5 – Published: 2023-07-19 11:31 – Updated: 2025-04-23 16:20
VLAI?
EPSS
Title
Excessive time spent checking DH keys and parameters
Summary
Issue summary: Checking excessively long DH keys or parameters may be very slow.
Impact summary: Applications that use the functions DH_check(), DH_check_ex()
or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long
delays. Where the key or parameters that are being checked have been obtained
from an untrusted source this may lead to a Denial of Service.
The function DH_check() performs various checks on DH parameters. One of those
checks confirms that the modulus ('p' parameter) is not too large. Trying to use
a very large modulus is slow and OpenSSL will not normally use a modulus which
is over 10,000 bits in length.
However the DH_check() function checks numerous aspects of the key or parameters
that have been supplied. Some of those checks use the supplied modulus value
even if it has already been found to be too large.
An application that calls DH_check() and supplies a key or parameters obtained
from an untrusted source could be vulernable to a Denial of Service attack.
The function DH_check() is itself called by a number of other OpenSSL functions.
An application calling any of those other functions may similarly be affected.
The other functions affected by this are DH_check_ex() and
EVP_PKEY_param_check().
Also vulnerable are the OpenSSL dhparam and pkeyparam command line applications
when using the '-check' option.
The OpenSSL SSL/TLS implementation is not affected by this issue.
The OpenSSL 3.0 and 3.1 FIPS providers are not affected by this issue.
Severity ?
No CVSS data available.
CWE
- CWE-606 - Unchecked Input for Loop Condition
Assigner
References
| URL | Tags | |
|---|---|---|
Impacted products
Date Public ?
2023-07-13 00:00
Credits
OSSfuzz
Matt Caswell
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Loading…
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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