Все бюллетени/c10f2/ALT-PU-2026-13421-3
ALT-PU-2026-13421-3

Обновление пакета python3-module-pyasn1 в ветке c10f2

Версия0.6.4-alt0.c10f2.1
Задание#429962
Опубликовано2026-08-26
Макс. серьёзностьHIGH
Серьёзность:

Закрытые проблемы (12)

BDU:2026-05145
HIGH7.5

Уязвимость ASN.1 библиотеки pyasn1 языка программирования Python, связанная с неограниченным распределением ресурсов, позволяющая нарушителю вызвать отказ в обслуживании

Опубликовано: 2026-04-13Изменено: 2026-09-06
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0ВЫСОКАЯ 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
Ссылки
BDU:2026-07266
HIGH7.5

Уязвимость библиотеки pyasn1 языка программирования Python, связанная с неконтролируемой рекурсией, позволяющая нарушителю вызвать отказ в обслуживании

Опубликовано: 2026-05-24Изменено: 2026-09-16
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0ВЫСОКАЯ 7.8
CVSS:2.0/AV:N/AC:L/Au:N/C:N/I:N/A:C
Ссылки
CVE-2026-23490
HIGH7.5

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2.

Опубликовано: 2026-01-16Изменено: 2026-09-09
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
CVE-2026-30922
HIGH7.5

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.3, the `pyasn1` library is vulnerable to a Denial of Service (DoS) attack caused by uncontrolled recursion when decoding ASN.1 data with deeply nested structures. An attacker can supply a crafted payload containing thousands of nested `SEQUENCE` (`0x30`) or `SET` (`0x31`) tags with "Indefinite Length" (`0x80`) markers. This forces the decoder to recursively call itself until the Python interpreter crashes with a `RecursionError` or consumes all available memory (OOM), crashing the host application. This is a distinct vulnerability from CVE-2026-23490 (which addressed integer overflows in OID decoding). The fix for CVE-2026-23490 (`MAX_OID_ARC_CONTINUATION_OCTETS`) does not mitigate this recursion issue. Version 0.6.3 fixes this specific issue.

Опубликовано: 2026-03-18Изменено: 2026-09-10
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
CVE-2026-59884
HIGH7.5

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER decoder shared by the CER and DER codecs parses long-form tags by accumulating continuation octets without an upper bound on the tag ID size, allowing a crafted input to force construction of an arbitrarily large integer with CPU cost growing quadratically and to trigger unhandled ValueError exceptions in Python 3.11+ error formatting paths. Any application decoding untrusted BER, CER, or DER input is affected. This issue is fixed in version 0.6.4.

Опубликовано: 2026-07-14Изменено: 2026-07-21
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
CVE-2026-59885
HIGH7.5

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the BER, CER, and DER decoders process OBJECT IDENTIFIER and RELATIVE-OID values in quadratic time relative to the number of arcs, so a small crafted payload containing an OID with many arcs consumes excessive CPU per decode() call and can deny service to applications that decode untrusted ASN.1 data. The corresponding encoders have the same quadratic behavior when an application re-encodes previously decoded attacker-supplied values. This issue is fixed in version 0.6.4.

Опубликовано: 2026-07-14Изменено: 2026-07-21
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
CVE-2026-59886
HIGH7.5

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.4, the univ.Real type converted its mantissa, base, and exponent value to a Python float using exact big-integer exponentiation. A BER, CER, or DER encoded REAL value only a few bytes long can carry a very large exponent, causing float conversion through prettyPrint(), str(), comparison, arithmetic, int(), or an explicit float() call to consume excessive CPU and memory and hang applications that decode untrusted ASN.1 data and then print, log, or compare decoded objects. This issue is fixed in version 0.6.4.

Опубликовано: 2026-07-14Изменено: 2026-07-21
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
GHSA-63vm-454h-vhhq
HIGH7.5

pyasn1 has a DoS vulnerability in decoder

Опубликовано: 2026-01-16Изменено: 2026-08-14
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
GHSA-8ppf-4f7h-5ppj
HIGH7.5

pyasn1: Quadratic complexity in OBJECT IDENTIFIER and RELATIVE-OID processing allows denial of service

Опубликовано: 2026-07-21
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
GHSA-hm4w-wwcw-mr6r
HIGH7.5

pyasn1: Uncontrolled resource consumption when converting decoded REAL values

Опубликовано: 2026-07-21
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
GHSA-jr27-m4p2-rc6r
HIGH7.5

Denial of Service in pyasn1 via Unbounded Recursion

Опубликовано: 2026-03-17Изменено: 2026-09-09
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки
GHSA-m4p7-r5rc-7g4j
HIGH7.5

pyasn1 BER/CER/DER decoder denial of service via unbounded long-form tag IDs

Опубликовано: 2026-07-21Изменено: 2026-07-31
CVSS 3.xВЫСОКАЯ 7.5
CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ссылки