On Sun, Feb 26, 2017 at 09:26:06AM +0300, Andrey Ponomarenko wrote:
> 31.01.2017, 10:21, "Nikos Mavrogiannopoulos":
> > On Fri, 2017-01-27 at 10:54 -0600, Benjamin Kaduk via openssl-dev
> > wrote:
> >>  [moving from github to -dev]
> >>
> >>  On 01/27/2017 07:36 AM, mattcaswell wrote:
> >>  > 1.0.2 is the software version.
> >>  > The numbers on the end of lbssl.so.1.0.0 refer to the ABI version -
> >>  > which is different. Software version 1.0.2 is a drop in replacement
> >>  > for 1.0.1, which is a drop in replacement for 1.0.0 - hence they
> >>  > all have the same ABI version.
> >>  >
> >>
> >>  There was some discussion about 1.0.1 being EoL on a FreeBSD list
> >>  [0], and whether it would make sense to move to 1.0.2 on their stable
> >>  branch, which led to someone making the claim that 1.0.2 has removed
> >>  4 symbols compared to 1.0.1, and thus is not strictly ABI compatible,
> >>  linking to https://abi-laboratory.pro/tracker/timeline/openssl/ .  If
> >>  I start semi-randomly clicking around, I can find a page [1] that
> >>  seems to claim the missing symbols are:
> >>  ASN1_STRING_clear_free()
> >>  ENGINE_load_rsax()
> >>  SRP_user_pwd_free()
> >>  SRP_VBASE_get1_by_user()

It's normal that you might see some symbols removed if you compare
something like 1.0.1t against 1.0.2, but it shouldn't when compared
to 1.0.2k.

CRYPTO_memcmp was added in 1.0.1d.

ASN1_STRING_clear_free was added in 1.0.1m and 1.0.2a

In 1.0.1s and 1.0.2g the following were added (for CVE-2016-0798):
SRP_VBASE_get1_by_user;
SRP_user_pwd_free;

ENGINE_load_rsax seems to have been removed because it didn't
compile? That looks like the only symbol that has been removed,
and it probably shouldn't have.


Kurt

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