Debian: DSA-5174-1: gnupg2 security update

Advisories


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Debian Security Advisory DSA-5174-1                   [email protected]
https://www.debian.org/security/                     Salvatore Bonaccorso
July 03, 2022                         https://www.debian.org/security/faq
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Package        : gnupg2
CVE ID         : CVE-2022-34903
Debian Bug     : 1014157

Demi Marie Obenour discovered a flaw in GnuPG, allowing for signature
spoofing via arbitrary injection into the status line. An attacker who
controls the secret part of any signing-capable key or subkey in the
victim's keyring, can take advantage of this flaw to provide a
correctly-formed signature that some software, including gpgme, will
accept to have validity and signer fingerprint chosen from the attacker.

For the oldstable distribution (buster), this problem has been fixed
in version 2.2.12-1+deb10u2.

For the stable distribution (bullseye), this problem has been fixed in
version 2.2.27-2+deb11u2.

We recommend that you upgrade your gnupg2 packages.

For the detailed security status of gnupg2 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/gnupg2

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]

Debian: DSA-5174-1: gnupg2 security update

July 3, 2022
Demi Marie Obenour discovered a flaw in GnuPG, allowing for signature spoofing via arbitrary injection into the status line

Summary

For the oldstable distribution (buster), this problem has been fixed
in version 2.2.12-1+deb10u2.

For the stable distribution (bullseye), this problem has been fixed in
version 2.2.27-2+deb11u2.

We recommend that you upgrade your gnupg2 packages.

For the detailed security status of gnupg2 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/gnupg2

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]

Severity
Demi Marie Obenour discovered a flaw in GnuPG, allowing for signature
spoofing via arbitrary injection into the status line. An attacker who
controls the secret part of any signing-capable key or subkey in the
victim's keyring, can take advantage of this flaw to provide a
correctly-formed signature that some software, including gpgme, will
accept to have validity and signer fingerprint chosen from the attacker.

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