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Gnupg : Security Vulnerabilities (CVSS score >= 5)

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2021-33560 203 2021-06-08 2021-06-15
5.0
None Remote Low Not required Partial None None
Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. (There is also an interoperability problem because the selection of the k integer value does not properly consider the differences between basic ElGamal encryption and generalized ElGamal encryption.) This, for example, affects use of ElGamal in OpenPGP.
2 CVE-2021-3345 787 Overflow 2021-01-29 2021-02-04
7.2
None Local Low Not required Complete Complete Complete
_gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 or later.
3 CVE-2020-25125 120 Overflow 2020-09-03 2020-09-11
6.8
None Remote Medium Not required Partial Partial Partial
GnuPG 2.2.21 and 2.2.22 (and Gpg4win 3.1.12) has an array overflow, leading to a crash or possibly unspecified other impact, when a victim imports an attacker's OpenPGP key, and this key has AEAD preferences. The overflow is caused by a g10/key-check.c error. NOTE: GnuPG 2.3.x is unaffected. GnuPG 2.2.23 is a fixed version.
4 CVE-2020-8945 416 Exec Code 2020-02-12 2020-07-24
5.1
None Remote High Not required Partial Partial Partial
The proglottis Go wrapper before 0.1.1 for the GPGME library has a use-after-free, as demonstrated by use for container image pulls by Docker or CRI-O. This leads to a crash or potential code execution during GPG signature verification.
5 CVE-2019-14855 327 2020-03-20 2020-09-22
5.0
None Remote Low Not required Partial None None
A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1 algorithm. An attacker could use this weakness to create forged certificate signatures. This issue affects GnuPG versions before 2.2.18.
6 CVE-2019-13050 295 DoS 2019-06-29 2021-03-04
5.0
None Remote Low Not required None None Partial
Interaction between the sks-keyserver code through 1.2.0 of the SKS keyserver network, and GnuPG through 2.2.16, makes it risky to have a GnuPG keyserver configuration line referring to a host on the SKS keyserver network. Retrieving data from this network may cause a persistent denial of service, because of a Certificate Spamming Attack.
7 CVE-2018-1000858 352 CSRF 2018-12-20 2019-02-13
6.8
None Remote Medium Not required Partial Partial Partial
GnuPG version 2.1.12 - 2.2.11 contains a Cross ite Request Forgery (CSRF) vulnerability in dirmngr that can result in Attacker controlled CSRF, Information Disclosure, DoS. This attack appear to be exploitable via Victim must perform a WKD request, e.g. enter an email address in the composer window of Thunderbird/Enigmail. This vulnerability appears to have been fixed in after commit 4a4bb874f63741026bd26264c43bb32b1099f060.
8 CVE-2018-12020 706 2018-06-08 2019-10-03
5.0
None Remote Low Not required None Partial None
mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and verification actions, which allows remote attackers to spoof the output that GnuPG sends on file descriptor 2 to other programs that use the "--status-fd 2" option. For example, the OpenPGP data might represent an original filename that contains line feed characters in conjunction with GOODSIG or VALIDSIG status codes.
9 CVE-2018-9234 320 2018-04-04 2019-02-27
5.0
None Remote Low Not required Partial None None
GnuPG 2.2.4 and 2.2.5 does not enforce a configuration in which key certification requires an offline master Certify key, which results in apparently valid certifications that occurred only with access to a signing subkey.
10 CVE-2018-6829 327 +Info 2018-02-07 2020-01-15
5.0
None Remote Low Not required Partial None None
cipher/elgamal.c in Libgcrypt through 1.8.2, when used to encrypt messages directly, improperly encodes plaintexts, which allows attackers to obtain sensitive information by reading ciphertext data (i.e., it does not have semantic security in face of a ciphertext-only attack). The Decisional Diffie-Hellman (DDH) assumption does not hold for Libgcrypt's ElGamal implementation.
11 CVE-2017-0379 200 +Info 2017-08-29 2019-01-16
5.0
None Remote Low Not required Partial None None
Libgcrypt before 1.8.1 does not properly consider Curve25519 side-channel attacks, which makes it easier for attackers to discover a secret key, related to cipher/ecc.c and mpi/ec.c.
12 CVE-2016-6313 200 +Info 2016-12-13 2018-01-05
5.0
None Remote Low Not required Partial None None
The mixing functions in the random number generator in Libgcrypt before 1.5.6, 1.6.x before 1.6.6, and 1.7.x before 1.7.3 and GnuPG before 1.4.21 make it easier for attackers to obtain the values of 160 bits by leveraging knowledge of the previous 4640 bits.
13 CVE-2014-9087 191 DoS Overflow 2014-12-01 2020-07-14
7.5
None Remote Low Not required Partial Partial Partial
Integer underflow in the ksba_oid_to_str function in Libksba before 1.3.2, as used in GnuPG, allows remote attackers to cause a denial of service (crash) via a crafted OID in a (1) S/MIME message or (2) ECC based OpenPGP data, which triggers a buffer overflow.
14 CVE-2014-4617 20 DoS 2014-06-25 2018-10-30
5.0
None Remote Low Not required None None Partial
The do_uncompress function in g10/compress.c in GnuPG 1.x before 1.4.17 and 2.x before 2.0.24 allows context-dependent attackers to cause a denial of service (infinite loop) via malformed compressed packets, as demonstrated by an a3 01 5b ff byte sequence.
15 CVE-2013-4402 20 DoS 2013-10-28 2014-01-04
5.0
None Remote Low Not required None None Partial
The compressed packet parser in GnuPG 1.4.x before 1.4.15 and 2.0.x before 2.0.22 allows remote attackers to cause a denial of service (infinite recursion) via a crafted OpenPGP message.
16 CVE-2013-4351 310 Bypass 2013-10-10 2014-01-04
5.8
None Remote Medium Not required Partial Partial None
GnuPG 1.4.x, 2.0.x, and 2.1.x treats a key flags subpacket with all bits cleared (no usage permitted) as if it has all bits set (all usage permitted), which might allow remote attackers to bypass intended cryptographic protection mechanisms by leveraging the subkey.
17 CVE-2012-6085 20 DoS 2013-01-24 2017-08-29
5.8
None Remote Medium Not required None Partial Partial
The read_block function in g10/import.c in GnuPG 1.4.x before 1.4.13 and 2.0.x through 2.0.19, when importing a key, allows remote attackers to corrupt the public keyring database or cause a denial of service (application crash) via a crafted length field of an OpenPGP packet.
18 CVE-2011-2207 295 DoS 2019-11-27 2019-12-13
5.0
None Remote Low Not required None None Partial
dirmngr before 2.1.0 improperly handles certain system calls, which allows remote attackers to cause a denial of service (DOS) via a specially-crafted certificate.
19 CVE-2010-2547 399 DoS Exec Code 2010-08-05 2010-12-10
5.1
None Remote High Not required Partial Partial Partial
Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.
20 CVE-2008-1530 399 DoS Exec Code Mem. Corr. 2008-03-27 2017-08-08
9.3
None Remote Medium Not required Complete Complete Complete
GnuPG (gpg) 1.4.8 and 2.0.8 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted duplicate keys that are imported from key servers, which triggers "memory corruption around deduplication of user IDs."
21 CVE-2007-1263 2007-03-06 2018-10-16
5.0
None Remote Low Not required None Partial None
GnuPG 1.4.6 and earlier and GPGME before 1.1.4, when run from the command line, does not visually distinguish signed and unsigned portions of OpenPGP messages with multiple components, which might allow remote attackers to forge the contents of a message without detection.
22 CVE-2006-6169 Exec Code Overflow 2006-11-29 2018-10-17
6.8
None Remote Medium Not required Partial Partial Partial
Heap-based buffer overflow in the ask_outfile_name function in openfile.c for GnuPG (gpg) 1.4 and 2.0, when running interactively, might allow attackers to execute arbitrary code via messages with "C-escape" expansions, which cause the make_printable_string function to return a longer string than expected while constructing a prompt.
23 CVE-2006-3746 DoS Overflow 2006-07-28 2018-10-17
5.0
None Remote Low Not required None None Partial
Integer overflow in parse_comment in GnuPG (gpg) 1.4.4 allows remote attackers to cause a denial of service (segmentation fault) via a crafted message.
24 CVE-2006-3082 189 DoS Overflow 2006-06-19 2018-10-18
5.0
None Remote Low Not required None None Partial
parse-packet.c in GnuPG (gpg) 1.4.3 and 1.9.20, and earlier versions, allows remote attackers to cause a denial of service (gpg crash) and possibly overwrite memory via a message packet with a large length (long user ID string), which could lead to an integer overflow, as demonstrated using the --no-armor option.
25 CVE-2005-0366 326 2005-05-02 2020-12-10
5.0
None Remote Low Not required Partial None None
The integrity check feature in OpenPGP, when handling a message that was encrypted using cipher feedback (CFB) mode, allows remote attackers to recover part of the plaintext via a chosen-ciphertext attack when the first 2 bytes of a message block are known, and an oracle or other mechanism is available to determine whether an integrity check failed.
Total number of vulnerabilities : 25   Page : 1 (This Page)
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