CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
64.8%
Debian Security Advisory DSA-4961-1 [email protected]
https://www.debian.org/security/ Salvatore Bonaccorso
August 23, 2021 https://www.debian.org/security/faq
Package : tor
CVE ID : CVE-2021-38385
Henry de Valence reported a flaw in the signature verification code in
Tor, a connection-based low-latency anonymous communication system. A
remote attacker can take advantage of this flaw to cause an assertion
failure, resulting in denial of service.
For the oldstable distribution (buster), this problem has been fixed
in version 0.3.5.16-1.
For the stable distribution (bullseye), this problem has been fixed in
version 0.4.5.10-1~deb11u1.
We recommend that you upgrade your tor packages.
For the detailed security status of tor please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/tor
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]
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 11 | armhf | tor-dbgsym | < 0.4.5.10-1~deb11u1 | tor-dbgsym_0.4.5.10-1~deb11u1_armhf.deb |
Debian | 10 | arm64 | tor | < 0.3.5.16-1 | tor_0.3.5.16-1_arm64.deb |
Debian | 11 | amd64 | tor-dbgsym | < 0.4.5.10-1~deb11u1 | tor-dbgsym_0.4.5.10-1~deb11u1_amd64.deb |
Debian | 11 | all | tor-geoipdb | < 0.4.5.10-1~deb11u1 | tor-geoipdb_0.4.5.10-1~deb11u1_all.deb |
Debian | 10 | all | tor | < 0.3.5.16-1 | tor_0.3.5.16-1_all.deb |
Debian | 11 | ppc64el | tor-dbgsym | < 0.4.5.10-1~deb11u1 | tor-dbgsym_0.4.5.10-1~deb11u1_ppc64el.deb |
Debian | 11 | i386 | tor-dbgsym | < 0.4.5.10-1~deb11u1 | tor-dbgsym_0.4.5.10-1~deb11u1_i386.deb |
Debian | 11 | s390x | tor-dbgsym | < 0.4.5.10-1~deb11u1 | tor-dbgsym_0.4.5.10-1~deb11u1_s390x.deb |
Debian | 11 | mipsel | tor-dbgsym | < 0.4.5.10-1~deb11u1 | tor-dbgsym_0.4.5.10-1~deb11u1_mipsel.deb |
Debian | 11 | amd64 | tor | < 0.4.5.10-1~deb11u1 | tor_0.4.5.10-1~deb11u1_amd64.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
64.8%