CVE-2011-2778
published 2011-12-23CVE-2011-2778: Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execute…
PriorityP338high7.6CVSS 2.0
AVNACHAuNCCICAC
EPSS
3.82%
88.9th percentile
Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by (1) establishing a SOCKS connection to SocksPort or (2) leveraging a SOCKS proxy configuration.
Affected
211 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | tor | < tor 0.2.2.35-1 (bookworm) | tor 0.2.2.35-1 (bookworm) |
| tor | tor | <= 0.2.2.34 | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
| tor | tor | — | — |
CVSS provenance
nvdv2.07.6HIGHAV:N/AC:H/Au:N/C:C/I:C/A:C
osv7.6HIGH
vendor_debian7.6HIGH
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Debian
CVE-2011-2778: tor - Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attacke...
vendor_debian·2011·CVSS 7.6
CVE-2011-2778 [HIGH] CVE-2011-2778: tor - Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attacke...
Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by (1) establishing a SOCKS connection to SocksPort or (2) leveraging a SOCKS proxy configuration.
Scope: local
bookworm: resolved (fixed in 0.2.2.35-1)
bullseye: resolved (fixed in 0.2.2.35-1)
forky: resolved (fixed in 0.2.2.35-1)
sid: resolved (fixed in 0.2.2.35-1)
trixie: resolved (fixed in 0.2.2.35-1)
GHSA
GHSA-63gv-rq26-r5mp: Multiple heap-based buffer overflows in Tor before 0
ghsa_unreviewed·2022-05-17
CVE-2011-2778 [HIGH] CWE-119 GHSA-63gv-rq26-r5mp: Multiple heap-based buffer overflows in Tor before 0
Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by (1) establishing a SOCKS connection to SocksPort or (2) leveraging a SOCKS proxy configuration.
OSV
CVE-2011-2778: Multiple heap-based buffer overflows in Tor before 0
osv·2011-12-23·CVSS 7.6
CVE-2011-2778 [HIGH] CVE-2011-2778: Multiple heap-based buffer overflows in Tor before 0
Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by (1) establishing a SOCKS connection to SocksPort or (2) leveraging a SOCKS proxy configuration.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2011-2778 CVE-2011-4897 tor various flaws [epel-5]
bugzilla·2012-12-11·CVSS 7.6
CVE-2011-2778 [HIGH] CVE-2011-2778 CVE-2011-4897 tor various flaws [epel-5]
CVE-2011-2778 CVE-2011-4897 tor various flaws [epel-5]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora EPEL.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When creating a Bodhi update request, please use the bodhi submission link
noted in the next comment(s). This will include the bug IDs of this
tracking bug as well as the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
Bodhi notes field when available.
epel-5 tracking bug for tor: see blocks bug l
Bugzilla
CVE-2011-2778 Tor heap-based buffer overflow
bugzilla·2011-12-16·CVSS 7.6
CVE-2011-2778 [HIGH] CVE-2011-2778 Tor heap-based buffer overflow
CVE-2011-2778 Tor heap-based buffer overflow
https://lists.torproject.org/pipermail/tor-talk/2011-December/022379.html
Tor 0.2.3.10-alpha fixes a critical heap-overflow security issue in
Tor's buffers code. Absolutely everybody should upgrade.
The bug relied on an incorrect calculation when making data continuous
in one of our IO buffers, if the first chunk of the buffer was
misaligned by just the wrong amount. The miscalculation would allow an
attacker to overflow a piece of heap-allocated memory. To mount this
attack, the attacker would need to either open a SOCKS connection to
Tor's SocksPort (usually restricted to localhost), or target a Tor
instance configured to make its connections through a SOCKS proxy
(which Tor does not do by default).
Good security practice requires that all
2011-12-23
Published